question_answer

M is the father of O and P is the son of Q. N is the brother of M. If O is the sister of P, how is N related to Q?

A)  Daughter          

B)  Brother-in-law  

C)  Sister-in-law    

D)  Husband

Correct Answer: B

Solution :

: Let us draw the generation diagram.                      0 (m stands for male and f stands for female) We see, N and M are brothers and Q is the wife of M. So, N is brother-in-law of Q.