‘A × B’ means ‘A is B’s brother’.
‘A ÷ B’ means ‘A is B’s sister’.
‘A + B’ means ‘A is B’s father’.
‘A – B’ means ‘A is B’s mother’.
Using the same meaning of the mathematical operators as given above, which of the following means ‘X is Z’s mother’s father’?
Correct Answer :
X + Y – Z
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