Question

If $20$ students out of $80$ appeared for a test, the percentage of students who did not appear out of the total is:

Answer 1

The total number of students $=80$

Number of students appeared in the exam $=20$

So, the number of students did not appear in the exam

$=80-20$

$=60$

Therefore, required percentage

$=\frac{60}{80}\times 100$

$=75$

Hence, this is the answer.