Question 21

If ‘P 3 Q’ means ‘Q is daughter of P’, ‘P 5 Q’ means ‘Q is son of P’, ‘P 7 Q’ means ‘P is sister Q’, ‘P 9 Q’ means ‘P is brother of Q’. Which of the following Expression indicates A is nephew of D ?

Solution

(A) : B 9 D 5 C 5 A

B is brother of D and D is son of C.

Also, C is son of A, => A is either grandfather or grandmother of D.

(B) : B 7 D 9 C 5 A

B is sister of D and D is brother of C.

Also, A is son of C, => A is nephew of D.

=> Ans - (B)

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