Q. 14.9( 16 Votes )

If A and B are tw

Answer :

Given:


n (A B) = 50


n(A) = 28


n(B) = 32


To Find:


n (A B) =?


We know,


n (A B) = n(A) + n(B) – n (A B)


Substituting the values we get


50 = 28+32 – n (A B)


50 = 60 – n (A B)


–10 = – n (A B)


n (A B) = 10.


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