General Intelligence Blood Relation Blood Relation Logical Resoning Question #6628 (CAT-I)

If 'A + B' means 'A is the mother of B', 'A - B' means 'A is the brother of B', 'A × B' means 'A is the father of B', and 'A ÷ B' means 'A is the sister of B', which of the following expressions means 'P is the maternal uncle of Q'?

A Q - N + P
B P - M + Q
C P + N - Q
D Q + P - N
Correct Answer & Explanation
Option B
We need to find an expression where P is the maternal uncle of Q. This means P is the brother of Q's mother. Let's analyze the options: • P - M + Q: • P - M means P is the brother of M. • M + Q means M is the mother of Q. • So, P is the brother of Q's mother. This makes P the maternal uncle of Q. • Let's check other options to confirm: • Q - N + P: Q is the brother of N, N is the mother of P. P is the son/daughter of Q's sister/brother. • P + N - Q: P is the mother of N, N is the brother of Q. P is the mother of Q. • Q + P - N: Q is the mother of P, P is the brother of N. P is Q's son, and N is P's sibling. So Q is the mother of N. • Therefore, P - M + Q correctly represents 'P is the maternal uncle of Q'.