A) 0
B) 10
C) 20
D) 30
Correct Answer: C
Solution :
[c]\[n(T)=50\] \[n(D)=30\] \[n(H)=40\] \[n(T)=n(D)+n(H)-n(DnH)\] \[50=30+40-n(D\cap H)\] \[n(D\cap H)=70-50=20\] Number of people having diabetes and high blood pressure = 20You need to login to perform this action.
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