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 x R ÷ Q, which of the following statements is true ?

D. P IS THE SON OF Q

A + B means A is the daughter of B ;
A x B means A is the son of B  and
A - B means A is the wife of B.

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

B. S IS FATHER OF P

A + B means A is the daughter of B ;
A - B means A is the husband of B ;
A x B means A is the brother of B.

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

C. P IS THE SON OF R

If A + B means A is the brother of B, A - B means A is the sister of B, and A × B means A is the father of B, what is the relationship of C if A + B × C?

D. C IS A'S SON

In a coded relation, if P × Q means P is the mother of Q, P ÷ Q means P is the son of Q, and P + Q means P is the daughter of Q, what is the relationship of R to S if R × S and S ÷ R are true?

A. R IS S'S MOTHER