

MCQOPTIONS
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1. |
If n(A)=10 , n(B)=30,n(C)=50 and if set A,B,C are pairwise disjoint then which of the following is correct? |
A. | n(A U B)=0 |
B. | n( B U C)=0 |
C. | n( A U B U C)=90 |
D. | All of the mentioned |
Answer» E. | |