Delhi Police Constable 2012 Paper

Question : 89 of 100

Marks: +1, -0

In an examination, 30% students failed in Mathematics, 25% failed in English and 15% failed in both subjects. What was the percentage of students passed?

Validate

Solution:

Number of successful candidates

= 100 - (x + y – z)

Here

x = 30y = 25

and

z = 15

= 100 -(30 + 25 -15)

= 100 - 40 = 60%

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