A) 3
B) 9
C) 6
D) None of these
Correct Answer: C
Solution :
[c] \[\because \]\[n\,(A)=3,\]\[n\,(B)=6\] \[\because \]\[n\,(A\cup B)=n\,(A)+n\,(B)-n\,(A\cap B)\] \[=3+6-3\] \[=6\] |
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