Question
Mathematics Question on Recalling Ratios and Percentages
72 % of 25 students are good in mathematics. How many are not good in mathematics?
Answer
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 = 10028×25
= 7
Thus, 7 students are not good in mathematics.