1.  Which of the following shows the relation that S is the father of Q?

A. S @ P $ Q
B. Q @ P % S
C. Q $ S @ P
D. None of these

Answer: Option D

Explanation:

In [A] S is female.

In [B] S is not known male or female.

In [C] S is also female.

In [D] is right i.e. none of these because,

Q@P means Q is sister of p.

P%S means P is son of S.

That means P and Q are son and daughter of S. But we can’t say it with surety whether S is mother or father as gender of S cannot be determined.

So option D is answer.