In a group of 40 people, 10 are healthy and every person the of the remaining 30 has either high bloodpressure, a high level of cholesterol or both.(a) if 15 have high blood pressure and 25 have high level of cholesterol, how many people have highblood pressure and a high level of cholesterol?
Answers
Answered by
3
15 and 25
is the answer
is the answer
Answered by
6
Answer:
10
Explanation:
Let A and B represents the following events.
A : The person have high blood pressure.
B : The person have high level of cholesterol.
Total number of peoples = 40
Healthy persons = 10
Either high blood pressure, a high level of cholesterol or both = 30
It means
It is given that 15 have high blood pressure and 25 have high level of cholesterol. It means
We need to find how many people have highblood pressure and a high level of cholesterol i.e.,
Substitute the given values in the above formula.
Therefore, 10 people have high blood pressure and a high level of cholesterol.
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