Question

If n(U) = 40, n(A) = 12, n(B) = 18 and n(AN B) = 20 then n(AUB), where U is the universal set, is
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Answer 1

Answer:

new 40 and equals to 10 and b is equals to 3 and a and b is equals to 2 then scores to 40 + 12 + 20 the universal set is 40 + 20 = 26060