Read the following coded relationship definitions carefully: - P \div Q means 'P is the mo… — State PSC Exam

Read the following coded relationship definitions carefully:
- $P \div Q$ means ' $P$ is the mother of $Q$ '
- $P + Q$ means ' $P$ is the father of $Q$ '
- $P \times Q$ means ' $P$ is the brother of $Q$ '
- $P - Q$ means ' $P$ is the sister of $Q$ '

Based on the expression $J \div K + L \times M - N + O$ , how is $O$ related to $J$ ?

A
Great-grandson
B
Great-granddaughter
C
Paternal Great-grandmother
Cannot be determinedAnswer

Answer

Cannot be determined, as the gender of

O

is not specified in the given expression.

Tracing the expression shows that

J

is the mother of

K

K

is the father of

N

, and

N

is the father of

O

. This makes

J

the great-grandmother of

O

, which means

O

is the great-grandchild of

J

. Since

O

is the terminal node in

N + O

, no operation defines

O

's gender. Therefore,

O

could be either a great-grandson or a great-granddaughter, making the exact relationship impossible to determine.

Step-by-Step Solution

Decode the maternal and paternal lineage from the first part of the expression

J \div K

implies

J

is the mother of

K

K + L

implies

K

is the father of

L

Establishing the top two generations of the family lineage.

Determine the sibling relationships in the third generation

L \times M - N

indicates that

L

M

, and

N

are siblings (children of

K

). Specifically,

N

is a male child of

K

Identifying that

N

belongs to the third generation as

K

's son.

Analyze the relationship to the fourth generation and test for gender clarity

N + O

shows

N

is the father of

O

. Thus,

O

is the child of

N

, making

O

the great-grandchild of

J

. However, the gender of

O

is unstated.

Evaluating whether

O

's gender can be uniquely determined.

Key Concept

Gender ambiguity in coded blood relations

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

Topics

More questions from this topic