In a certain code language, ‘A + B’ means ‘A is the mother of B’; ‘A – B’ means ‘A is the brother of B’; ‘A × B’ means ‘A is the wife of B’ and ‘A ÷ B’ means ‘A is the father of B’. Based on the above, if M + Q – R + K – Y, then how is M related to Y?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Mother’s mother.
Given equation: M + Q – R + K – Y → M is the mother of Q, Q is the brother of R, R is the mother of K, and K is the brother of Y.

Thus, M is the Mother's mother of Y.