If A and B are two sets such that `n (A)=27, n(B)=35 and n(A cup B) =5 – InterviewSolution

InterviewSolution

1.	If A and B are two sets such that `n (A)=27, n(B)=35 and n(A cup B) =50`. Find `n(A cap B)`.
Answer» We know that ` n(A cap B) =n(A)+ n(B) -n(A cap B)` `rArr n(A cap B)=n(A) +n(B) -n( Acup B) =(27+35-50)=12`. Hence, `n(Acap B) =12`.

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