Math, asked by SaksheeGangurde, 11 months ago

if n(A)=10 ,n(AuB)=30, n(AnB)=5 then n (B)=?

Answers

Answered by Amoy
0
Answer -
n(B) = 25 .

Working formula -
n(AuB) = n(A) + n(B) - n(AnB)

Do it yourself !!
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