If P - Q means P is the sister of Q, and Q + R means Q is the brother of R, what is the relationship between P and R?

A. SISTER

A is the brother of B. C is the sister of A. D is the mother of B. How is C related to D?

A. DAUGHTER

In a coded relation, if P * Q means P is the mother of Q, P + Q means P is the father of Q, and P - Q means P is the sister of Q, what is the relationship of R if P * R + Q?

A. R IS Q'S BROTHER

A is the sister of B. C is the mother of A. How is C related to B?

B. MOTHER

D is the father of E. E is the daughter of F. How is D related to F?

C. HUSBAND