Question

what is the total no.of candidates at an exam if 3/10 candidates fail and the number those who passed exceeds the number of those who failed by 260?​

Answer 1

Answer:

The total number of students is 650.

Let the total number of students appearing be x.

Now 3/10 candidates fail.

So 3/10*x number of candidates fail.

So x-3/10*x number of students pass = 7/10*x number fail.

Now (7/10*x)-(3/10*x) = 260.

So 4/10*x = 260.

So, x = (260*10)/4 = 650