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Q. Consider the following Venn - diagram in which each number represents no. of elements.
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Based on above diagram, answer the following questions.
The value of $n(A)+n(B)+n(C)$ is

Sets

Solution:

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$ n(A)=3+2+2+1=8$
$ n(B)=3+2+2+1=8 $
$ n(C)=2+2+1+1=6$
$ \therefore n(A)+n(B)+n(C)=8+8+6=22$