n(u) = 700, n(A) = 200, n(B).= 300. n(A ∩ B) = 100. Findn(A’ ∩ B – InterviewSolution

InterviewSolution

1.

n(u) = 700, n(A) = 200, n(B).= 300. n(A ∩ B) = 100. Findn(A’ ∩ B’)

Answer»

n(A’ ∩ B’) = n(A ∪ B)’

= n(U) – n(A ∪ B) = 700 – n(A ∪ B)

Now n(A ∪ B) = n(A) + n(B) – n(A ∩ B)

= 200 + 300 – 100 = 400

∴ n(A’ ∩ B’) = 700 – 400 = 300

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