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If n (x) = 12, n (Y) = 10 and n (Xcap Y)...

If n (x) = 12, n (Y) = 10 and n `(Xcap Y) = 8`, then the value of of `n(XcupY)`is

A

a)0

B

b)1

C

c)-1

D

d)2

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Knowledge Check

  • If A,B and C are three finite sets, n(A)=10,n(B)=15, n(C)=20,n(AcapB)=8 and n(B capC)=9 , then the value of n(AcupBcupC) will be_____

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    C
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    D
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    `-(x)/(y)`

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