Discussion Forum



1)

G X H means G is the mother of H

G + H means G  is the father of H

G - H means G is son of H

Which of the following means P is grandson of R ?


A) P X Q + R

B) P + Q + R

C) R + Q + P

D) R - Q - P

Answer:

Option D

Explanation:

P X Q + R means P is the mother of Q and Q is the father of R.Hence R is grandchild of P.

P + Q + R means P is the father of Q and Q is the father of R.Hence R is grandchild of P.

R + Q + P means R is the father of Q andQ is the father of P.Here P is grandchild of R,but we do not know whether he is grandson or granddaughter of R.

R - Q - P means P is son of Q and Q is the son of R .Hence,Pis the grandson of R