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Difference of Two Sets

How many fail...

Question

How many failed in one subject only?

A

152

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B

144

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C

61

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D

56

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Solution

The correct option is D $61$
Consider the diagram :
Candidates failed in one subject only(orange part) $=$ (total number of candidates) - (candidates passed in all subjects + candidates failed in all the subjects + candidates passed in one subject only) $= 450 - (167 + 60 + 62 + 48 + 52) = 450 - 389 - 61$
Hence, option 'C' is correct.

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