If 'P × Q' means P is the father of Q, 'P + Q' means P is the sister of Q, and 'P − Q' means P is the mother of Q, then in 'M × N + O − P', how is M related to P?

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Accepted Answer

Grandfather. M × N: M is father of N. N + O: N is sister of O (so M is father of O too). O − P: O is mother of P. Thus M is the father of P's mother = P's (maternal) grandfather.

If 'P × Q' means P is the father of Q, 'P + Q' means P is the sister of Q, and 'P − Q' means P is the mother of Q, then in 'M × N + O − P', how is M related to P?

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