If the number of items of a set A be n(A) = 40, n(B) = 26 and

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Probability

Multiple Choice Questions

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1.
If the number of items of a set A be n(A) = 40, n(B) = 26 and n(A∩B) = 16, then n (A∪B) is equal to

30

40

50

50

C.

50

n(A ∪ B) = n(A) + n(B) - n(A ∩ B)
= 40 + 26 - 16 = 50

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