Blood Relation Test - Verbal and Reasoning

Q1:

If A + B means A is the brother of B; A x B means A is the son of B; and A % B means B is the daughter of A then which of the following means M is the maternal uncle of N?

A M + O x N

B M % O x N + P

C M + O % N

D None of these

ANS:D - None of these

Explanation: Because the sex of O is not known.