Question

if n(A),=15,n(AnB)=3 and n(AuB)=17,then n(B)
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Answer 1

Answer:

n(B)=15

Step-by-step explanation:

n(AUB)=n(A)+n(B)-n(AnB)

17=15+n(B)-3

17=12+n(B)

17-12=n(B)

5=n(B)

Hoping for the best...