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Question

If A and B are two sets such that n(AB)=50, n(A) = 28 and n(B) = 32, find n(AB).

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Solution

n(AB)=50

n(A)=28

n(B)=32

n(AB)=n(A)+n(B)n(AB)

=28+3250

=6050

=10

So, n(AB)=10.

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