In an examination 25 of the candidates failed in Mathematics and 12 failed in English If 10 of the c...........

Quantitative Aptitude( Paper-I ) Percentage

In an examination, 25% of the candidates failed in Mathematics and 12% failed in English. If 10% of the candidates failed in both the subjects and 292 candidates passed in both the subjects, which one of the following is the number of total candidates appeared in the examination ?

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CAPF 2017 Paper-1

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300

400

460

500

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Explanation:

We have a formula
single values-double values = total
(25% + 12%)-10% = 27%(who are failed)
Pass students = Total-fail
100% - 27% = 73%
73% = 292
1% = 292/73 = 4
100% = 400