In a certain code language,
'Ax B' means 'A is the sister of B',
'A # B' means 'A is the mother of B',
'A $ B' means 'A is the father of B'.
Based on the above, how is X related to R if X # P $ Q × R?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Father's mother.
Given equation: X # P $ Q × R → X is the mother of P, P is the father of Q and Q is the sister of R.

Thus, X is the Father's mother of R.