Question

Mark (✓) against the correct answer
In an examination, 95% of the total examinees passed. If the number of failures is 28, how many examinees were there?

(a) 600
(b) 480
(c) 560
(d) 840

Answer 1

(c) 560
Suppose that the number of examinees is 100.
Number of passed examinees = 95
Number of failed examinees = (100 − 95) = 5

Total number of examinees if 5 of them failed = 100
Total number of examinees if 28 of them failed = $\left(\frac{100}{5}\times 28\right)=\left(20\times 28\right)=560$
Hence, there were 560 examinees.