Question

There are 18 girls in a class. If this is 40% of the class list, then how many students are in the class?

Answer 1

Here's your answer!

18 girls= 40%


A.T.S
$40\% \: of \: x = 18 \\ \frac{2x}{5} = 18 \\ 2x = 90 \\ x = \frac{90}{2} \\ x = 45$
So there are 45 students in class.

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Answer 2

let the total no. of students in class=x
girls =18
40%of x=18
40/100×x=18
x=18×100/40
x=45
total no. of students =45

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