Question

if 84% of 25 students are interested in maths , how many are not interested in mathematics ​

Answer 1

Answer:

Students who are interested=84%

So,

84% of 25=84/100×25

84% of 25 = 21

So, students who are not interested are 25-21 = 4.

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Answer 2

4 students are not interested in maths when 84% of 25 students are interested in the mathematics.

Given that,

We have to find how many pupils are not interested in mathematics if 84% of 25 students are.

We know that,

What is percentage?

From the Latin word "per centum," which meaning "by the hundred," the word "percentage" was borrowed. Percentages are fractions when the denominator is 100. ​Otherwise put, it is the relationship between a component and a whole in which the value of "whole" is always assumed to be 100. ​

So,

84% of 25 students

25 × $\frac{84}{100}$

21 students are interested in mathematics out of 25 students

Then The student not interested in maths are 25-21 = 4 students.

Therefore, 4 students are not interested in maths.

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