Question

Let U be the universal set, and P and be any two sets. If n(U) = 60, n(P)
n(9) = 20 and n(
PQ)' = 50, find the following.
(i) n(P 9) (ii) n(PU9) (iii) n(P-9) (iv) n(Q-P)​

Answer 1

Answer:

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