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Question

Find the number of students in a class if 18 percent of them that is 9 have taken karate activities.

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Solution

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Let the number of students be $x$
Given $18 %$ of $x$ is $9$
$⟹ \frac{18 x}{100} = 9$
$⟹ x = 50$
Total number of students are $50$

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Find the number of students in a class if 18 percent of them that is 9 have taken karate activities.

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