1.  If A $ B means A is the brother of B; A @ B means A is the wife of B; A # B means A is the daughter of B and A * B means A is the father of B, which of the following indicates that U is the father-in-law of P?
A. P @ Q $ T # U * W
B. P @ W $ Q * T # U
C. P @ Q $ W * T # U
D. P @ Q $ T # W * U

Answer: Option A

Explanation:

P @ Q ? P is the wife of Q ...(1)

Q $ T ? Q is the brother of T ...(2)

T # U ? T is the daughter of U

Hence, ? Q is the son of U ...(3)

U * W ? U is the father of W.

From (1) and (3), U is the father-in-law of P.