Question

If 'BxC means 'B is the daughter of C B + C' means 'B is the husband of Ć' and 'B-C means "B is the sister of C', then what does "M + N - PxQ' mean?
(1) M is the brother-in-law of O
(2) M is the uncle of Q
(3) M is the son-in-law of O
(4) Q is the mother-in-law of M
(5) None of the above

Answer 1

Q is the mother-in-law of M

Answer 2

4 is the answer.
.M is mother in law