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Given n (U) = 20, n (A) =12, n (B) = 9, ...

Given `n (U) = 20, n (A) =12, n (B) = 9, n (A nnB) = 4,` where U is the universal set, A and B subsets of U, then `n [(A uu B) ^c ]` equals to : a)17 b)9 c)11 d)3

A

17

B

9

C

11

D

3

Text Solution

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The correct Answer is:
D
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