Answers

2016-04-06T10:25:23+05:30
15% of students are failed,
hence 75% of students are passed.
let total no. of students = y
y × 75/100 = 1275
y = (1275 × 100)/75 =1700 students appeared in the exam
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2016-04-06T17:18:11+05:30
Let the total number of students be x

15% failed.

So, 100 - 15 = 85 % passed


85 % of x = 1275
85/100 × x = 1275
x = 1275 × 100/85 = 1500
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