A and B are two sets. A has 10 members and B has 18 members. A ∪ B = 20 . The number of members in A ∩ B will be

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CollectorBabu · Accepted Answer

Correct Answer: 8. * n(A ∪ B) = n(A) + n(B) – n(A ∩ B) * it is given that n(A ∪ B) = 20 n(A) = 10 n(B) = 18 * So n(A ∩ B) = n(A) + n(B) – n(A ∪ B) * n(A ∩ B) = 10 + 18 – 20 * n(A ∩ B) = 8 * So option C is correct.

A and B are two sets. A has 10 members and B has 18 members. A ∪ B = 20 . The number of members in A ∩ B will be

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