Question

If n(U)=75, n(A')=48 and n(B)=36 then find n(A) and n(B')

Answer 1

Given , n(U) = 75

and n (A') = 48 and n(B)= 36

n ( A) = n(U) - n (A')

n(A) = 75 -48

n(A) = 27

and , n(B') = n ( U) - n(B)

n(B) = 75 - 36

n(B) = 39

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