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The Venn diagram below shows the number of people who attended seminars on Physics , Chemistry . Maths and Biology . What is the number of people who attended exactly any two seminars ?

A

21

B

36

C

38

D

42

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The correct Answer is:
B
The number of people who at tended exactly any two seminars can be determined by adding the numbers common to only two geometrical figures. Required number = 7 + 5 + 14 10 = 36
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