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If n(A)=10,n(A cap B)=5 and n(A cup B)=3...

If `n(A)=10,n(A cap B)=5 and n(A cup B)`=35 then n(B) =____.

A

30

B

10

C

40

D

None of these

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The correct Answer is:
a
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PEARSON IIT JEE FOUNDATION-EQUATIONS AND THEIR APPLICATIONS-Level 3
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