Question

72% of 25 students are good in mathematics. How many are not good in mathematics?

Answer 1

It is given that 72% of 25 students are good in mathematics.

Therefore,

Percentage of students who are not good in mathematics = (100 − 72)%

= 28%

∴Number of students who are not good in mathematics =

= 7

Thus, 7 students are not good in mathematics.