Question

3.72% of 25 students are interested in mathematics. How many are not interested in mathematics?

Answer 1

Answer:

hope it helps

Step-by-step explanation:

Mark me the brainliest please

Answer 2

Answer:

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Given, Total Students = 25

Percentage of Students interested in mathematics = $\sf\green{ \:72percentage }$

Percentage of Students not interested mathematics = $\sf\blue{ 100 percentage\: -\:72percentage }$

Percentage of Students not interested in mathematics = $\sf\red {28 percentage }$

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Finding number of students not interested in mathematics

• Let number of Students not interested in Mathematics x

$\begin{gathered}\begin{gathered}: \implies \underline{ \boxed{\displaystyle \sf \bold{\: Percentage\: =\: \frac{Number \: of \: student \: not \: interested \: in \: Mathematics}{Total \: Students} \: \times 100 }} }\\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: 28 \: = \: \frac{x}{25} \: \times \: 100\\ \\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \:28 \: = \: x \: \times \: 4 \\ \\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: \frac{28}{4} \: = \: x\\ \\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: 7 \: = \: x\\ \\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \underline{ \boxed{\displaystyle \sf \bold{\: x \: = \: 7}} }\\ \\\end{gathered}\end{gathered}$

Hence, 7 students are not interested in mathematics

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