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If n(U) = 100, n(A)=50, n(B)=20 and n(A ...

If n(U) = 100, n(A)=50, n(B)=20 and `n(A nn B)` = 10, then `n{(A uu B)}` =

A

60

B

30

C

40

D

20

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The correct Answer is:
C
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