In a class of $40$ students, $45 %$ are girls. Find the number of boys in the class.

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Solution

Here given that,
Total students are = $40$
Girls are $45 %$ of total count.
So, number of girls = $45 %$ of $40$
i.e., $45 \times \frac{40}{100} =$ $18$
Hence, the number of boys in the class is $40 - 18 = 22$ .

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In a class of 40 students, 45% are girls. Find the number of boys in the class.

Here given that, Total students are = 40Girls are 45% of total count.So, number of girls = 45% of 40i.e., 45×40100=18Hence, the number of boys in the class is 40-18=22.

In a class of $40$ students, $45 %$ are girls. Find the number of boys in the class.

Here given that,
Total students are = $40$
Girls are $45 %$ of total count.
So, number of girls = $45 %$ of $40$
i.e., $45 \times \frac{40}{100} =$ $18$
Hence, the number of boys in the class is $40 - 18 = 22$ .