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1. n(AUB) = 100 n(b)=20 and n(AnB)=10 the find n(A)​
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1. n(AUB) = 100 n(b)=20 and n(AnB)=10 the find n(A)​

User MoatPylon
by
8.1k points

1 Answer

2 votes

Answer:

90

Explanation:

(AUB) = A + B - (AnB)

100 = A + 20 - 10

A = 90

User Dancran
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