3. 72% of 25 students are interested in mathematics. How many are not

1.	3. 72% of 25 students are interested in mathematics. How many are not interestedin mathematics?
Answer» If , students good in math = 72% Total no. of students= 25 then, percent are used to have 100. Therefor, 72×25÷100 = 18 Then , no of students good in math = 18 Total no. Of student = 25 Therefore, Students not good in maths = total no. of students - no. Of students good in maths = 25–18 = 7 The no. Of students not good in maths are 7.

3. 72% of 25 students are interested in mathematics. How many are not interestedin mathematics?

Answer»

If , students good in math = 72%

Total no. of students= 25

then, percent are used to have 100.

Therefor, 72×25÷100

= 18

Then , no of students good in math = 18

Total no. Of student = 25

Therefore, Students not good in maths = total no. of students - no. Of students good in maths

= 25–18

= 7

The no. Of students not good in maths are 7.