question_answer

If \['A\text{ }+\text{ }B'\]means 'A is the father of B' and \['A\text{ }-\text{ }B'\]means 'A is the mother of B' then for \[P\text{ }-\text{ }Q\text{ }+\text{ }S,\]which of the following relation is true?

A)  P is grandfather of S                  

B)  S is grand-daughter of P

C)  S is grandchild of P                   

D)  S is grandson of P

Correct Answer: C

Solution :

: S's father is Q and Q's mother is P. Also gender of S cannot be determined.