1.  If A $ B means B is the father of A; A # B means B is the mother of A; A * B means B is the sister of A and A @ B means B is the husband of A, which of the following indicates that N is the grandmother of P?
A. P * Q # M $ N
B. P @ Q $ M # N
C. P # Q $ N * M
D. None of these

Answer: Option D

Explanation:

P@Q --> Q is P's husband.

Q$M --> M is Q's father.

M#N --> N is M's Mother.

Hence N is Q's grandmother but not P's as P is Q's wife rather the relation may be Grand Mother-in-law.