Q1. If X and Y are two sets such that X ∪ Y has 50 elements, X has 2 – InterviewSolution

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Q1. If X and Y are two sets such that X ∪ Y has 50 elements, X has 28 elements and Y has 32 elements, how many elements does X ∩ Y have?please don't write on a paper please

Answer»

Answer:

N(xΠY) = N(X) + N(Y) - N(XUY)

N(XΠY) = 28 + 32 -50

N(XΠY) = 10.

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