A + B means A is the son 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 mother of B; and
A = B means A is the sister of B.
What does P = R + Q mean ?

B. P IS THE DAUGHTER OF Q.

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 is true ?

A. P IS THE BROTHER-IN-LAW OF Q

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 ÷ Q, which of the following is true ?

C. P IS THE HUSBAND OF Q

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

If A + B means A is the sister of B;
A - B means A is the brother of B;
A x B means A is the daughter of B,
Which of the following shows the relation that E is the maternal uncle of D ?

C. D X F + E