In an examination, 60% of candidates failed, the number of candidates who passed was 500. Find the number that failed.

Answer 1

You can set this up as a ratio.

6/10 or 3/5 of people failed

If 3/5 of people failed that means that 2/5 of people passed.

Your ratio would be set up as follows:

2/5 = 500/total

total = 500 * (5/2) = 2500/2 = 1250

The number that failed would be 1250 - 500 = 750

You can check your answer in the end by making sure that the number of people who passed is 40% of 1250 is equal to 500.