Math, asked by esther72, 3 months ago

(i) If n(A) = 40, n(AUB) = 60 and n(An B)=10, then n(B) is -

Answers

Answered by parashuramnalla
1

Answer:

Step-by-step explanation:

If n(A) = 40, n(AUB) = 60 and n(An B)=10, then n(B) is -

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

60=40+n(B)-10

60=30+n(B)

60-30=n(B)

So,n(B)=30

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