If n(P - Q) = 67, , and then find n(Q)

1.	If n(P - Q) = 67, , and then find n(Q)
A.	127
B.	118
C.	143
D.	129
E.	None of these
Answer» D. 129

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If n(P - Q) = 67, , and then find n(Q)

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