Question

72% of 25 students are interested in mathematics how many are not interested in mathematics.
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Answer 1

Answer:

The no. of students that are not interested in mathematics is 7.

Step-by-step explanation:

Given:

• 72% of 25 students are interested in mathematics.

Need to find:

• The no. of students that are not interested in mathematics.

Explanation:

As it given that

72% of 25 students are interested in mathematics

Therefore,

100 - 72 = 28% students are not interested in mathematics

According to question

No. of students not interested in mathematics = 28% of 25

=> 28/100×25

=> 7

Hence,the no. of students that are not interested in mathematics is 7.

Answer 2

$\huge \underline \mathbb {SOLUTION:-}$

AnsWer:

• 7 students are not interested in mathematics.

Given:

• Total students = 25
• Percentage of students good in mathematics = 72 %

Need To Find:

• Number of students are not interested in mathematics = ?

Explanation:

Percentage of students not good in mathematics = 100% - 72%

Percentage of students not good in mathematics = 28%

Finding number of students not good in mathematics.

Let number of students not good in mathematics = x

• Percentage = Number of students not good in mathematics/Total students × 100

Now, Putting the values:

➠ 28 = x/25 × 100

➠ 28 = x × 4

➠ 28/4 = x

➠ 7x

➠ x = 7

Therefore:

• 7 students are not interested in mathematics.

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