In a practice paper questions were given from 5 topics Out of the appearing students 10 passed in al...........

Quant (SSC) Percentage

In a practice paper, questions were given from 5 topics. Out of the appearing students, 10% passed in all topics while 10% did not pass in any. Of the remaining, 20% passed in one topic only and 25% in two topics only. If 24% of the total students passed 4 topics only and 500 students passed in 3 topics only, find the total number of students who appeared in the examination?

2500

2000

1600

4545

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Explanation:

Let the number of appearing students be 100.
Pass only in 0 topic – 10
1 – 16 (20% of 80)
2 – 20 (25% of 80)
3 – 20% (100 – (16+20+24+20))
4 – 24%
5 – 20%
Therefore, 20% of x = 500 => x = 2500

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