A) 400
B) 350
C) 300
D) 600
Correct Answer: C
Solution :
[c] \[\therefore n\left( U \right)=700\] \[n\left( A \right)=200\] \[n\left( B \right)=300\] \[n\left( A\cap B \right)=100\] \[\because n\left( A\cup B \right)=n\left( A \right)+n\left( B \right)-n\left( A\cap B \right)\] \[=200+300-100=400\] Now, \[n\left( A'\cap B' \right)=n\left( A\cup B \right)'\] \[=n\left( U \right)-n\left( A\cup B \right)=700-400=300\] Hence, option is correct.You need to login to perform this action.
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