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UPSC NDA I 2012 Mathematics Paper

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For the next Four (4) questions that follow:

In a city, three daily newspapers A, B, C are published,

42\%

read

A ; 51\%

read

B ; 68\%

read

C ; 30\%

read

A

and

B ; 28\%

read

B

and

C ; 36\%

read

A

and

C ; 8\%

do not read any of the three newspapers.

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Question : 117 of 120

Marks: +1, -0

What is the percentage of persons who read all the three papers?

$20\%$
$25\%$
$30\%$
$40\%$

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