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In a class of 30 students 12 take needle...

In a class of 30 students 12 take needle work, 16 take physics and 18 take history. If all the 30 students take at least one subject and no one takes all three, then the number of students taking 2 subjects is

A

16

B

6

C

8

D

20

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The correct Answer is:
A
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