1.

If A @ B means A is mother of B, A # B means A is sister of B and A ! B means A is granddaughter of B, then what does P # Q ! R @ S mean, if R has only one child?

A. R is mother of P
B. Q is sister of S
C. S is mother of P
D. P is sister of S
Answer» D. P is sister of S


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