A) 80%
B) 40%
C) 60%
D) 70%
Correct Answer: C
Solution :
[c] \[n\,(C)=20,\]\[n\,(B)=50,\]\[n\,(C\cap B)=10\] Now,\[n\,(C\cup B)=n\,(C)+n\,(B)-n\,(C\cap B)'\] \[=20+50-10=60\] |
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