Blood Relations

34 questions

Question 1Question

In a certain coded language, family relationships are represented as follows:

PQP \star Q means PP is the father of QQ.
PQP \diamond Q means PP is the mother of QQ.
PQP \triangle Q means PP is the brother of QQ.
PQP \nabla Q means PP is the sister of QQ.

Based on the expression KiranAnjaliSamirRohanKiran \star Anjali \nabla Samir \triangle Rohan, what is the relationship of Rohan to Kiran?

Show answer & explanation

Answer: Cannot be determined

Answer

The relationship cannot be determined because Rohan's gender is not explicitly stated in the expression.
The expression establishes that Anjali, Samir, and Rohan are all siblings, placing them in the generation immediately below Kiran. Because Kiran is Anjali's father, Kiran is the father of all three. However, the expression ends with 'SamirRohanSamir \triangle Rohan', which only tells us that Samir is a brother to Rohan. It provides zero information about Rohan's gender. Because strict logical reasoning rules dictate that gender cannot be assumed from a proper name, Rohan could be either the son or the daughter of Kiran. Therefore, the exact relationship cannot be definitively determined.

Step-by-Step Solution

1
Decode the first relationship: KiranAnjaliKiran \star Anjali.
Kiran is the father of Anjali.
The \star symbol designates the first person as the father of the second person.
2
Decode the second relationship: AnjaliSamirAnjali \nabla Samir.
Anjali is the sister of Samir.
The \nabla symbol designates the first person as the sister. Combined with Step 1, this means Samir is also a child of Kiran.
3
Decode the third relationship: SamirRohanSamir \triangle Rohan.
Samir is the brother of Rohan.
The \triangle symbol designates the first person as the brother. This means Rohan is a sibling to both Anjali and Samir, and therefore is a child of Kiran.
4
Determine Rohan's gender to finalize the relationship to Kiran.
Rohan's gender remains completely unknown.
The final operator only defines Samir's gender (as a brother). Strict logical reasoning rules prohibit assuming gender from the name 'Rohan'. Thus, Rohan could be either a son or a daughter.

Key Concept

Coded Blood Relations and Logical Gender Constraints
Question 2Question

A family of six individuals—Kiran, Rahul, Priya, Dev, Sam, and Alex—are traveling together. The family's structure is defined by the following facts:

1. Dev is the mother of Priya, and is married to Alex.
2. Rahul is the father of both Alex and Kiran.
3. Rahul is the paternal grandfather of Sam.
4. Priya is the sister of Sam.
5. Within this specific group of six, there are exactly two fathers, three brothers, and one mother.

Based on this information, how is Kiran related to Priya?

Show answer & explanation

Answer: Paternal uncle

Answer

Paternal uncle
Based on the given clues, Alex and Dev are the parents of Priya and Sam. Rahul is the father of Alex and Kiran, making Alex and Kiran siblings. To satisfy the condition that there are exactly three brothers in the group, we must count Alex (brother to Kiran), Kiran (brother to Alex), and Sam (brother to Priya). This strictly defines Kiran as male. Since Kiran is the brother of Priya's father (Alex), Kiran is Priya's paternal uncle.

Step-by-Step Solution

1
Determine the parents of Priya and Sam.
Alex is the father and Dev is the mother.
Dev is the mother of Priya and is married to Alex. Since Priya is Sam's sister, Alex and Dev are parents to both.
2
Determine the generational relationship of Rahul, Alex, and Kiran.
Rahul is the father of both Alex and Kiran (Generation 1). Alex and Kiran are siblings (Generation 2).
This is explicitly stated in the second clue, and it aligns perfectly with Rahul being the paternal grandfather of Sam.
3
Deduce the genders of the remaining members using the role count conditions.
Sam is male, and Kiran is male.
We must have exactly 3 brothers. Alex is a brother (to Kiran). To get two more brothers, Kiran must be a brother (to Alex), and Sam must be a brother (to Priya). Thus, both are logically deduced to be male.
4
Identify Kiran's relationship to Priya.
Kiran is the paternal uncle of Priya.
Kiran is the male sibling of Alex, who is Priya's father.

Key Concept

Logical Deduction of Gender in Blood Relations
Estimated Time:1m 30s
Question 3Question

The board of directors of a closely-held company consists of five family members: Samar, Kiran, Harpreet, Daksh, and Ekta. The following relational conditions apply:

- Daksh is the son of Kiran, but Kiran is not the mother of Daksh.
- Samar and Kiran are a married couple.
- Ekta is the sibling of Kiran.
- Harpreet is the daughter of Samar.

Based on these statements, what is the exact relationship of Ekta to Harpreet?

Show answer & explanation

Answer: Paternal uncle or paternal aunt

Answer

Paternal uncle or paternal aunt
Based on the given statements, Kiran is the father and Samar is the mother of the children (Daksh and Harpreet). Ekta is described as the sibling of Kiran (the father), placing Ekta on the paternal side. Since the term 'sibling' provides no gender information, and we cannot assume gender from the name 'Ekta', the exact relationship must account for both possibilities: paternal uncle or paternal aunt.

Step-by-Step Solution

1
Determine Kiran's exact parental role from the first statement.
Kiran is Daksh's father.
The statement explicitly notes Daksh is the son, but Kiran is NOT the mother. Therefore, Kiran must be the father.
2
Determine Samar's role based on the marriage condition.
Samar is Daksh's mother.
Since Samar and Kiran are married, and Kiran is the father, Samar takes the role of the mother.
3
Determine Harpreet's position in the family tree.
Harpreet is the daughter of Kiran and Samar (Daksh's sister).
Harpreet is stated to be the daughter of Samar (the mother), which means she is also the daughter of Kiran (the father).
4
Determine Ekta's relation to Harpreet based on Ekta's relation to Kiran.
Ekta is Harpreet's paternal uncle or paternal aunt.
Ekta is the sibling of Kiran (the father). Because the word 'sibling' does not denote gender, Ekta's exact gender remains unknown, making Ekta either a paternal uncle or paternal aunt.

Key Concept

Logical deduction of family structures without relying on name-based gender assumptions
Question 4Question

Read the following information carefully:
In a family of seven members—A,B,C,D,E,F,A, B, C, D, E, F, and GG—spanning three generations:
AA is the father-in-law of DD, who is married to BB.
CC is the only brother-in-law of BB and has no children.
EE is the paternal grandmother of FF.
GG is the daughter of CC's sister.
FF is the brother of GG.

What is the relationship of CC to FF?

Show answer & explanation

Answer: Maternal uncle; Maternal Uncle; maternal uncle; Uncle; uncle

Answer

Maternal uncle
Based on the given conditions, DD is married to BB, and CC is DD's brother. Since GG is the daughter of CC's sister (DD) and FF is the brother of GG, DD is the mother of FF. Therefore, CC, being the brother of FF's mother, is the maternal uncle of FF.

Step-by-Step Solution

1
Analyze the first-generation and second-generation parent-in-law link.
AA is the father-in-law of DD, who is married to BB. This implies BB is the child of AA, and DD is BB's spouse.
A father-in-law is the father of one's spouse.
2
Deduce the sibling relationship and gender of DD and BB.
CC is the brother-in-law of BB and has a sister whose daughter is GG. Since DD is married to BB, DD must be CC's sister, establishing DD as female and BB as male.
Since CC is BB's brother-in-law and has a sister with children, DD is that sister.
3
Determine the third-generation parentage and verify the paternal grandmother clue.
GG is the daughter of DD, and FF is the brother of GG, making both FF and GG the children of BB (father) and DD (mother). EE is the paternal grandmother of FF, so EE is BB's mother married to AA.
Siblings FF and GG share parents BB and DD.
4
Establish the relationship of CC to FF.
Since CC is the brother of DD (who is FF's mother), CC is the maternal uncle of FF.
The brother of one's mother is defined as a maternal uncle.

Key Concept

Blood Relations - Multi-generational Family Tree Deduction
Question 5Question

During an office gathering, a manager named Kiran introduces a visitor to a colleague by saying, "She is the only daughter of my spouse's mother-in-law." Based on this statement, how is the visitor related to Kiran?

Show answer & explanation

Answer: Sister

Answer

The visitor is Kiran's sister.
Breaking down the statement backwards: Kiran's 'spouse's mother-in-law' is Kiran's mother. The 'only daughter' of Kiran's mother is either Kiran herself (if female) or Kiran's sister (if male). Because Kiran is introducing a distinct third person ('She is'), the visitor cannot be Kiran. Thus, Kiran must be male, and the visitor is his sister.

Step-by-Step Solution

1
Identify the relationship described by 'my spouse's mother-in-law'.
Kiran's spouse's mother-in-law is Kiran's own mother.
In a marital relationship, the mother-in-law of one spouse is the biological mother of the other spouse.
2
Determine the identity of 'the only daughter' of Kiran's mother.
The only daughter of Kiran's mother must either be Kiran herself (if Kiran is female) or Kiran's sister (if Kiran is male).
The child of one's mother is one's sibling, or oneself.
3
Deduce Kiran's gender from the contextual clues.
Since Kiran is introducing the visitor as a separate third party ('She is...'), the visitor cannot be Kiran herself. Therefore, Kiran must be male, and the visitor is his sister.
A person cannot logically introduce themselves as a distinct visitor in this manner, eliminating the ambiguity.

Key Concept

Blood Relations
Question 6Question

Read the following information carefully about a family of six members: P, Q, R, S, T, and U.

• There are two married couples in the family across three generations.
• Q is a doctor and the father of T.
• U is a contractor and the paternal grandfather of R.
• S is a housewife and the paternal grandmother of T.
• The professions in the family are: one doctor, one contractor, one nurse, one housewife, and two students.
• The nurse is the wife of the doctor.
• R is the sister of T.

Determine the identity and position of each family member, then match the individuals on the left with their exact relationship to P.

Click a left item, then click its matching right item

Items

Q
U
S
R

Matches

Show answer & explanation

Answer

Q is the Husband, U is the Father-in-law, S is the Mother-in-law, and R is the Daughter of P.
Based on the generational breakdown, P is the mother in the second generation. Therefore, her spouse Q is her Husband, her spouse's father U is her Father-in-law, her spouse's mother S is her Mother-in-law, and her female child R is her Daughter.

Step-by-Step Solution

1
Identify the first-generation couple based on the grandparents' clues.
U (paternal grandfather) and S (paternal grandmother) are married to each other.
Since there are two married couples and they are described as paternal grandparents of the children, they form the oldest generation couple.
2
Identify the second-generation parents and their professions.
Q is the doctor and the father. He is married to P, who must be the nurse.
Q is explicitly stated as the father of T. The nurse is the wife of the doctor. Since P is the only unassigned adult, P must be the nurse and Q's wife.
3
Identify the third-generation children and their genders.
R and T are the children of Q and P. R is female (sister of T).
Both are grandchildren of U and S, and children of Q. R is stated to be the sister, establishing her gender as female.
4
Determine the exact relationship of Q, U, S, and R to P.
Q is P's husband; U is Q's father (P's father-in-law); S is Q's mother (P's mother-in-law); R is P's daughter.
Mapping the family tree directly to P yields these specific relationships.

Key Concept

Multi-generational family tree deduction and mapping relationships to a specific unstated family member.
Question 7Question

In a cryptographic family ledger, relational links between individuals are denoted by specific symbols:

P@QP @ Q means PP is the father of QQ.
P#QP \# Q means PP is the wife of QQ.
P$QP \$ Q means PP is the brother of QQ.
P%QP \% Q means PP is the daughter of QQ.

Based on the coded expression Aditi%Meera#Dev$Shashi\text{Aditi} \% \text{Meera} \# \text{Dev} \$ \text{Shashi}, what is the exact relationship of Shashi to Aditi?

Show answer & explanation

Answer: Data is insufficient to determine

Answer

Data is insufficient to determine
The relationship chain establishes that Shashi is the sibling of Aditi's father. However, the expression does not provide a relational symbol that defines Shashi's gender. Without knowing if Shashi is a man or a woman, the exact relationship (Paternal Uncle or Paternal Aunt) cannot be determined. Therefore, the data is insufficient.

Step-by-Step Solution

1
Analyze the first part of the expression: Aditi%Meera\text{Aditi} \% \text{Meera}
Aditi is the daughter of Meera. (Aditi is female).
Applies the defined rule for the %\% symbol.
2
Analyze the next part: Meera#Dev\text{Meera} \# \text{Dev}
Meera is the wife of Dev. Therefore, Dev is male and is the father of Aditi.
Applies the rule for the #\# symbol and establishes the parental link.
3
Analyze the final part: Dev$Shashi\text{Dev} \$ \text{Shashi}
Dev is the brother of Shashi. This makes Shashi the sibling of Aditi's father.
Applies the rule for the $\$ symbol.
4
Evaluate Shashi's gender to determine the precise relationship.
The symbol $\$ defines Dev as a male brother, but it does not specify whether the sibling (Shashi) is male or female.
Logical constraints require explicit proof of gender. Proper names cannot be used to deduce gender in blood relation puzzles.

Key Concept

Coded Blood Relations and Logical Gender Ambiguity
Estimated Time:1m 0s
Question 8Question

In a family of seven members—A, B, C, D, E, F, and G—the following relationships are known:

- D is the maternal grandfather of E and has exactly three children, all of whom are daughters.
- C is the father of E and has no siblings.
- B is the wife of C.
- F is the mother of G and the sister-in-law of C.

Based on the provided information, which of the following statements must be true?

Show answer & explanation

Answer: A is the maternal aunt of E.

Answer

The statement that must be true is that A is the maternal aunt of E.
By mapping the family tree, we find that D has three daughters: B (who is E's mother), F (who is G's mother), and A (the remaining family member). Because A is the sister of B, she is the maternal aunt of E.

Step-by-Step Solution

1
Analyze D's relationship to the rest of the family.
D is the maternal grandfather of E. This means E's mother is the daughter of D. We also know D has exactly three children, all daughters.
To establish the top generation and the gender constraints of the second generation.
2
Determine the relationships between B, C, and F.
B is the wife of C, and C is the father of E. Thus, B is E's mother and one of D's three daughters. F is C's sister-in-law. Because C has no siblings, F must be the sister of C's wife (B). Therefore, F is the second daughter of D.
To accurately map the second generation and resolve the 'sister-in-law' connection.
3
Identify the remaining family members.
The family has 7 members. We have identified D (grandfather), B (daughter 1), F (daughter 2), C (B's husband), E (B's child), and G (F's child). The only unassigned member is A. Since D has three daughters, A must be the third daughter.
To complete the family tree using the member count constraint.
4
Evaluate the genders of E and G to verify the statements.
The text states C is the 'father of E' and F is the 'mother of G', but does not provide any pronouns or terms to establish the genders of E and G. Options claiming 'grandson' or 'nephew' cannot be proven true.
To eliminate distractors relying on gender assumptions.

Key Concept

Blood Relations and Multi-generational Family Trees
Estimated Time:2m 0s
Question 9Question

Study the following coded relationships carefully:

- P+QP + Q means 'PP is the mother of QQ'
- PQP - Q means 'PP is the brother of QQ'
- P×QP \times Q means 'PP is the husband of QQ'
- P÷QP \div Q means 'PP is the sister of QQ'
- PQP \star Q means 'PP is the son of QQ'

Based on the expression U+V×W÷XYZU + V \times W \div X \star Y - Z, which of the following statements is DEFINITELY correct?

Show answer & explanation

Answer: VV is the son-in-law of YY

Answer

The statement 'VV is the son-in-law of YY' is definitely correct.
Breaking down the expression step-by-step: V×WV \times W confirms VV (male) is married to WW (female). W÷XYW \div X \star Y indicates WW and XX are siblings, and XX is the son of YY, meaning YY is a parent of WW. YZY - Z establishes that YY is a male (brother of ZZ), so YY is the father of WW. Since VV is the husband of WW and YY is the father of WW, VV is definitely the son-in-law of YY.

Step-by-Step Solution

1
Decode U+VU + V and V×WV \times W
UU is female (mother of VV). VV is male (husband of WW), and WW is female (wife of VV).
Establishes the married couple (V,W)(V, W) and VV's mother UU.
2
Decode W÷XYW \div X \star Y
WW is the sister of XX, and XX is the son of YY.
Since WW and XX are siblings and XX is YY's son, YY is the parent of both WW and XX.
3
Decode YZY - Z
YY is the brother of ZZ.
Since YY is male and a parent of WW (who is female), YY is the father of WW. ZZ is a sibling of father YY, but ZZ's gender remains unknown.
4
Synthesize the relationship between VV and YY
VV is married to WW, and YY is WW's father. Therefore, VV is YY's son-in-law.
Deduces the exact relationship between VV and YY with 100% certainty.

Key Concept

Coded Blood Relations and Gender Deductions
Question 10Question

Read the following information regarding a seven-member family—P,Q,R,S,T,U,P, Q, R, S, T, U, and VV—spread across three generations with two married couples:

1. QQ is the mother-in-law of PP, and PP is married to RR's only sibling.
2. TT is married to QQ and has only two children, SS and RR.
3. RR is an unmarried female and is the paternal aunt of VV.
4. UU is the daughter of PP, and VV is the brother of UU.

Based on the family tree deduced from the statements above, match each person in Column I with their precise relationship to VV in Column II.

Click a left item, then click its matching right item

Items

Person PP
Person QQ
Person RR
Person TT

Matches

Show answer & explanation

Answer

Person PP matches with Mother; Person QQ matches with Paternal Grandmother; Person RR matches with Paternal Aunt; Person TT matches with Paternal Grandfather.
Deductively analyzing the three generations shows that TT (male) and QQ (female) are the grandparents in Generation 1. Their children are SS (male) and RR (female). Because RR is the paternal aunt of VV, SS is the father of VV, and PP (wife of SS) is the mother of VV. Therefore, PP is the Mother, QQ is the Paternal Grandmother, RR is the Paternal Aunt, and TT is the Paternal Grandfather.

Step-by-Step Solution

1
Determine Generation 1 members and couple relationships
Generation 1 consists of couple (T,QT, Q) with children SS and RR in Generation 2.
From Statement 2, TT is married to QQ and they have two children, SS and RR. This places TT and QQ in Generation 1.
2
Deduce PP's spouse and Generation 2 structure
PP is married to SS.
Statement 1 states QQ is the mother-in-law of PP, and PP is married to RR's only sibling. Since TT and QQ's children are SS and RR, RR's only sibling is SS.
3
Determine genders of SS and PP using paternal relationships
SS is the father of VV, and PP is the mother of VV. Since QQ is mother-in-law to PP, QQ is female and TT is male.
Statement 3 states RR is the paternal aunt of VV. A paternal aunt is the sister of one's father. Thus, VV's father must be RR's brother, SS. Since SS is male (father), PP must be female (mother).
4
Map relations to VV for each person
PP -> Mother; QQ -> Paternal Grandmother; RR -> Paternal Aunt; TT -> Paternal Grandfather.
SS is VV's father. PP is VV's mother. RR is VV's father's sister (paternal aunt). QQ is VV's father's mother (paternal grandmother). TT is VV's father's father (paternal grandfather).

Key Concept

Multi-generational Family Tree Puzzle and Relational Deduction
Question 11Question

Read the following information about a six-member family consisting of K,L,M,N,O,K, L, M, N, O, and PP:

1. KK and LL are a married couple, where KK is the paternal grandfather of OO.
2. MM is the daughter-in-law of LL and a sibling of NN.
3. PP is a child of MM and a sibling of OO.
4. NN is unmarried and has no children.

Based strictly on the given information, how is NN related to OO?

Show answer & explanation

Answer: Either maternal uncle or maternal aunt

Answer

Either maternal uncle or maternal aunt
The correct answer is that NN is either the maternal uncle or maternal aunt. MM is identified as the daughter-in-law of LL and mother of OO. Since NN is a sibling of mother MM, NN belongs to OO's maternal generation. However, because no statement specifies whether NN is male or female, the exact relation remains open between maternal uncle and maternal aunt.

Step-by-Step Solution

1
Determine the gender and generation of KK and LL
KK is male (paternal grandfather), so LL is female (paternal grandmother). They represent the first generation.
Since KK is the paternal grandfather of OO, KK must be male and married to LL.
2
Analyze MM's relationship to the family
MM is female and married to the son of KK and LL (who is the father of OO).
MM is given as the daughter-in-law of LL, meaning she is married to LL's son.
3
Determine MM's relationship to OO
MM is the mother of OO (and PP).
PP is the child of MM and sibling of OO, making MM the mother of both PP and OO.
4
Determine NN's relationship to OO and evaluate gender constraints
NN is the sibling of mother MM, but NN's gender is not explicitly stated. Thus, NN is either a maternal uncle or a maternal aunt.
In logical blood relation rules, gender cannot be assumed without explicit relational terms. Being a sibling of MM establishes NN on the maternal side, but leaves NN's gender undetermined.

Key Concept

Logical Gender Rules in Blood Relations
Question 12Question

In a family of six members—P,Q,R,S,T,P, Q, R, S, T, and UU—spanning three generations, SS is the brother of PP. PP is married to QQ, and TT is the daughter of QQ. RR is the only son of SS. UU is the child of RR. Based strictly on the given information, how is UU related to SS?

Show answer & explanation

Answer: Grandchild

Answer

Grandchild
The term 'Grandchild' correctly captures the two-generation downward relation from SS to UU via RR without making an unsourced assumption about UU's gender.

Step-by-Step Solution

1
Determine the relationship between SS and RR.
SS is the father of RR because RR is stated as the only son of SS.
Establishing the parent-child link between Generation 1 (SS) and Generation 2 (RR).
2
Determine the relationship between RR and UU.
RR is the parent of UU as UU is the child of RR.
Establishing the parent-child link between Generation 2 (RR) and Generation 3 (UU).
3
Trace the relationship from SS to UU and evaluate gender constraints.
Since SS is RR's father and RR is UU's parent, UU is the grandchild of SS. The problem specifies UU as 'child', leaving UU's gender undetermined.
Preventing invalid gender deduction from unstated attributes.

Key Concept

Blood Relations with Gender Ambiguity Constraints
Estimated Time:1m 30s
Question 13Question

At a charity dinner, a woman named Sarah points to a man across the room and tells her friend, 'His wife's father-in-law is the husband of my husband's mother.' If it is known that Sarah's husband is his parents' only son, what is the exact relationship of the man to Sarah?

Show answer & explanation

Answer: Husband; husband; Spouse; spouse; Her husband

Answer

Husband
Breaking down Sarah's statement: 'the husband of my husband's mother' refers to Sarah's father-in-law (the father of her husband). Therefore, 'His wife's father-in-law' must also be Sarah's father-in-law. For the man's wife to have the same father-in-law as Sarah, the man's father must be Sarah's father-in-law. This means the man is either Sarah's husband's brother, or he is Sarah's husband himself. Since we are given that Sarah's husband is his parents' only son, he cannot have any brothers. Thus, the man Sarah is pointing to must be her own husband.

Step-by-Step Solution

1
Identify the person described in the second half of Sarah's statement: 'the husband of my husband's mother'.
Sarah's husband's mother is her mother-in-law. The husband of her mother-in-law is Sarah's father-in-law (her husband's father).
Breaking down the relational chain from Sarah's perspective establishes the target identity.
2
Identify the person described in the first half of the statement: 'His wife's father-in-law'.
For any married man, his wife's father-in-law is his own father.
The father-in-law of a wife is by definition the father of her husband.
3
Equate the two identities found in steps 1 and 2.
The man's father is the exact same person as Sarah's husband's father.
The statement uses the word 'is' to connect both descriptions, meaning they refer to the same individual.
4
Determine the relationship based on the constraint that Sarah's husband is his parents' only son.
Since the man and Sarah's husband share the same father, they must be brothers, or they must be the same person. Because Sarah's husband is an only son, there are no brothers. Therefore, the man must be Sarah's husband himself.
Applying the final logical constraint eliminates all other possibilities.

Key Concept

Blood Relations
Question 14Question

Read the given relationship statements carefully: 'X is the child of Y, and Y is the mother of Z.' If W is the brother of X, which of the following best describes the relationship of Z to W?

Show answer & explanation

Answer: Brother or Sister (Cannot be determined uniquely without knowing Z's gender)

Answer

Brother or Sister (Cannot be determined uniquely without knowing Z's gender)
Y is the mother of X and Z. Because W is the brother of X, all three are siblings sharing Y as their mother. However, since no relational term specifies whether Z is male or female, Z can be either a brother or a sister to W.

Step-by-Step Solution

1
Analyze parent-child relationships
Y is the common parent of X, Z, and W
Y is the mother of X and Z. Since W is the brother of X, W is also a child of Y.
2
Determine generation and sibling group
X, Z, and W are all siblings
All three share the same mother Y, putting them in the same generation.
3
Evaluate gender of the target person
Gender of Z is unspecified
The term 'child' does not define gender. Without explicit information, Z may be male or female.

Key Concept

Gender ambiguity in family trees
Question 15Question

If A+BA + B means 'AA is the brother of BB', A×BA \times B means 'AA is the father of BB', and ABA - B means 'AA is the sister of BB', then in the expression P×Q+RP \times Q + R, how is RR related to PP?

Show answer & explanation

Answer: Either Son or Daughter

Answer

R is either the son or daughter of P.
The expression P×QP \times Q establishes that PP is the father of QQ. The expression Q+RQ + R establishes that QQ is the brother of RR. Together, this means PP is the father of both QQ and RR. Since the expression does not give any information about the gender of RR, RR can be either a male child (son) or a female child (daughter) of PP. Therefore, the relation is 'Either Son or Daughter'.

Step-by-Step Solution

1
Decode the first relation P×QP \times Q
PP is the father of QQ (meaning PP is male and one generation above QQ).
The symbol '×\times' indicates that the first person is the father of the second person.
2
Decode the second relation Q+RQ + R
QQ is the brother of RR (meaning QQ is male and shares the same parents as RR).
The symbol '+' indicates that the first person is the brother of the second person.
3
Determine the relation between PP and RR and analyze gender constraints
Since PP is the father of QQ, and QQ is RR's sibling, PP must also be the father of RR. However, Q+RQ + R does not specify whether RR is male or female.
A brother relationship 'QQ is the brother of RR' specifies the gender of QQ (male), but not the gender of RR.

Key Concept

Gender Determination in Coded Blood Relations
Estimated Time:45s
Question 16Question

In a family of seven members—P,Q,R,S,T,U,P, Q, R, S, T, U, and VV—representing three generations, there are two married couples. The relationships among the family members are specified below:

RR is the mother of TT and the mother-in-law of UU.
PP is the father-in-law of UU and has only one son, SS.
UU is married to TT.
QQ and VV are siblings, both being children of TT.

Based on the given information, how is SS related to VV?

Show answer & explanation

Answer: Maternal uncle

Answer

Maternal uncle
The correct answer is Maternal uncle because PP and RR are married and have two children: SS (male, since he is the only son) and TT (female). TT is married to UU and is the mother of VV. Since SS is the brother of VV's mother (TT), SS is VV's maternal uncle.

Step-by-Step Solution

1
Determine the first-generation couple and their children.
PP and RR form a married couple in Generation 1. RR is the mother of TT and PP is the father-in-law of UU.
Since RR is the mother of TT and PP is the father-in-law of TT's spouse UU, PP and RR are married.
2
Deduce the genders of SS and TT.
SS is male (son) and TT is female (daughter).
The problem states that PP has only one son, who is SS. Because TT is also a child of PP and RR, TT must be female.
3
Determine the Generation 2 couple and Generation 3 children.
TT (female) is married to UU (male). Their children are QQ and VV.
UU is married to TT, making TT the mother of QQ and VV.
4
Determine the relationship between SS and VV.
SS is the maternal uncle of VV.
SS is the brother of TT, and TT is the mother of VV. The brother of one's mother is a maternal uncle.

Key Concept

Blood relations gender deduction using uniqueness constraints
Question 17Question

Based on the family relationships described below, match each person in Column I with their correct relationship to Dipti in Column II:

• Anand is the father of Bina.
• Bina is the sister of Chetan.
• Dipti is the mother of Chetan.
• Esha is the daughter of Bina.

Click a left item, then click its matching right item

Items

Anand
Bina
Chetan
Esha

Matches

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Answer

Anand matches with Husband; Bina matches with Daughter; Chetan matches with Son; Esha matches with Granddaughter.
Constructing the family tree reveals that Anand and Dipti are husband and wife. Their children are Bina (daughter) and Chetan (son). Bina's daughter is Esha, making Esha the granddaughter of Dipti.

Step-by-Step Solution

1
Identify the parent-child relationships for Bina and Chetan
Anand is the father and Dipti is the mother of the sibling pair Bina and Chetan.
Since Bina and Chetan are siblings, they share the same parents.
2
Determine the relationship between Anand and Dipti
Anand is Dipti's husband.
Anand is the father and Dipti is the mother of Bina and Chetan.
3
Determine Bina and Chetan's relations to Dipti
Bina is the daughter and Chetan is the son of Dipti.
Bina is stated as a sister (female) and Chetan as a brother/sibling (male child of Dipti).
4
Determine Esha's relation to Dipti
Esha is Dipti's granddaughter.
Esha is the daughter of Bina, who is the daughter of Dipti.

Key Concept

Multi-generational Blood Relations Analysis
Question 18Question

Pointing to a photograph of a man, Neha said, "He is the only son of my mother's husband." How is the man in the photograph related to Neha?

Show answer & explanation

Answer: Brother; brother

Answer

The man in the photograph is Neha's brother.
Neha's mother's husband refers to Neha's father. The only son of Neha's father is her brother. Thus, the man in the photograph is Neha's brother.

Step-by-Step Solution

1
Analyze the expression 'my mother's husband'.
Neha's mother's husband is her father.
In standard blood relation terminology, a mother's husband is the father.
2
Analyze the expression 'the only son of my father'.
The only son of Neha's father is her brother.
A male child of the same father is a brother.

Key Concept

Blood Relations - Pointing Narrative
Estimated Time:45s
Question 19Question

Read the multi-generational family relationship details provided below and match each individual in Column I with their precise relation to UU in Column II:

1. PP is the husband of QQ, and they have only one child, TT, who is a male.
2. QQ is the mother-in-law of SS.
3. RR is the brother of SS.
4. UU is the daughter of TT.

Click a left item, then click its matching right item

Items

PP
QQ
RR
SS

Matches

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Answer

The correct pairings are: PP matches with Paternal Grandfather, QQ matches with Paternal Grandmother, RR matches with Maternal Uncle, and SS matches with Mother.
Tracing the three generations reveals that PP and QQ are the paternal grandfather and grandmother of UU respectively because they are the parents of UU's father TT. SS is married to TT, making her UU's mother, and her brother RR is UU's maternal uncle.

Step-by-Step Solution

1
Determine the parental lineage of UU
TT is the father of UU. PP (male) and QQ (female) are married and have TT as their only child. Therefore, PP is the father of TT and QQ is the mother of TT.
Establishing TT's parents determines the paternal grandparents of UU.
2
Identify SS's relationship to UU
QQ is the mother-in-law of SS, and TT is QQ's only child. Thus, SS must be married to TT. Since TT is male (father of UU), SS is female and is the mother of UU.
Connecting SS to TT establishes the maternal line for UU.
3
Determine the relationship of RR to UU
RR is given as the brother of SS. Since SS is the mother of UU, RR is the mother's brother.
A mother's brother is defined as a maternal uncle.
4
Synthesize and match each individual to their relation to UU
PP = Paternal Grandfather, QQ = Paternal Grandmother, RR = Maternal Uncle, SS = Mother.
Complete resolution of all generation gaps and gender specifications.

Key Concept

Multi-Generational Blood Relations and Gender Deduction
Question 20Question

Based on the family relationships described below, match each person listed in Column I with their correct relation to Rohan in Column II:

• Priya is the mother of Rohan.
• Vikram is the brother of Priya.
• Ananya is the daughter of Vikram.
• Rajesh is the father of Priya.

Click a left item, then click its matching right item

Items

Vikram
Ananya
Rajesh

Matches

Show answer & explanation

Answer

Vikram matches with Maternal Uncle; Ananya matches with Maternal Cousin; Rajesh matches with Maternal Grandfather.
Vikram is Rohan's mother's brother (Maternal Uncle), Ananya is the daughter of Rohan's mother's brother (Maternal Cousin), and Rajesh is Rohan's mother's father (Maternal Grandfather).

Step-by-Step Solution

1
Determine Vikram's relation to Rohan
Priya is Rohan's mother, and Vikram is Priya's brother. The brother of one's mother is a maternal uncle.
Identify direct sibling relationship to the mother.
2
Determine Ananya's relation to Rohan
Ananya is the daughter of Vikram, who is Rohan's maternal uncle. The child of one's maternal uncle is a maternal cousin.
Identify child of maternal uncle.
3
Determine Rajesh's relation to Rohan
Rajesh is the father of Priya, who is Rohan's mother. The father of one's mother is a maternal grandfather.
Identify parent of mother.

Key Concept

Identifying direct multi-generational maternal family relationships.
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Blood Relations Practice Questions — State PSC Exam | Examkin