Mark the correct alternative in the following:
If A and B are two sets such that n(A) = 70, n(B) = 60, n
= 110, then n
is equal to
n(A⋃B) =n(A)+n(B)-n(A⋂B)
∴n(A⋂B) =n(A)+n(B)-n(A⋃B)
∴n(A⋂B) =70+60-110
∴n(A⋂B) =20
1
Mark the correct alternative in the following:
If A and B are two sets such that n(A) = 70, n(B) = 60, n= 110, then n is equal to
n(A⋃B) =n(A)+n(B)-n(A⋂B)
∴n(A⋂B) =n(A)+n(B)-n(A⋃B)
∴n(A⋂B) =70+60-110
∴n(A⋂B) =20