Question

72% of 25 students are good in math. how many are not good in mathematics?
with example:​

Answer 1

Answer:

if 72% students good in maths then 28 are not good in math so

28 %of 25 =7

7 students are not good in maths

Answer 2

As per the details provided in the above question.

The given data is as follow,

Total number of students is 25.

Percent of students good in maths 72%

We have to number of students not good in mathematics.

Thus, the number of students good in mathematics are as follows,

$= \frac{72}{100} \times 25 \\ = 0.72 \times 25 \\ = 18$

So, Number of students good in mathematics ars 18.

Therefore number of students not good in mathematics are as follows,

$= 25 - 18 = 7$

That is 28% are not good in mathematics.

Hence 7 students are not good in mathematics.