question_answer

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 one of the following indicates that U is the father-in-law of P?

A) P@QT#U*W

B) P@WQ*T#U

C) P@QW*T#U

D) P@QT#W*U

E) None of these

Correct Answer: A

Solution :

Explanation Option [a] is correct. P @ Q              \[\to \]      P is the wife of Q       .......  (1) Q  T                           \[\to \]      Q is the brother of T   ....... (2) T # U               \[\to \]    T is the daughter of U \[\to \]      Q is the son of U                                 ....... (3) U * W               \[\to \]     U is the father of W. From (1) and (3), U is the father-in-law of P.