A + B means A is the father of B ;
A - B means A is the wife of B ;
A x B means A is the brother of B ;
A ÷ B means A is the daughter of B.

If P - R x Q, which of the following is true ?

C. P IS THE SISTER-IN-LAW OF Q

All the six members of a family A, B, C, D, E and F are travelling together. B is the son of C but C is not the mother of B, A and C are a married couple. E is the brother of C. D is the daughter of A. F is the brother of B. How many male members are there in the family ?

D. 4

A man said to a lady, " Your mother's husband's sister is my aunt."
How is the lady related to the man ?

D. SISTER

A family consists of six members P, Q, R, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. How is Q related to X ?

C. BROTHER

Lakshmi and Meena's are Rohan's wives. Shalini is Meena's step-daughter.
How is Lakshmi related to Shalini ?

C. MOTHER