If P \times Q means 'P is the father of Q', P + Q means 'P is the sister of Q', and P - Q … — State PSC Exam

If $P \times Q$ means ' $P$ is the father of $Q$ ', $P + Q$ means ' $P$ is the sister of $Q$ ', and $P - Q$ means ' $P$ is the mother of $Q$ ', how is $A$ related to $C$ in the expression $A + B \times C$ ?

AuntAnswer
B
Uncle
C
Mother
D
Niece

Answer

Aunt

The expression

A + B \times C

breaks down into two steps:

A + B

means

A

is the sister of

B

, and

B \times C

means

B

is the father of

C

. Because

A

is the sister of

C

's father,

A

C

's aunt.

Step-by-Step Solution

Decode the first relation

A + B

A

is the sister of

B

, which establishes that

A

is female.

The symbol

+

represents the 'sister of' relationship.

Decode the second relation

B \times C

B

is the father of

C

The symbol

\times

represents the 'father of' relationship.

Combine the relations to deduce the relation of

A

C

A

is the sister of

C

's father (

B

), which means

A

is the aunt of

C

A father's sister is defined as a paternal aunt.

Key Concept

Coded Blood Relations

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

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