Question

1》In a class of 50 students, 40 % are girls. Find the number of girls and number of boys in the class?​

Answer 1

$number \: of \: girls = 50 \times \frac{40}{100 }$

$5 \times 4 \\ = 20$

no. of girls =20

total no. of student =50

=50-20

=30

there are 30 boys

Answer 2

Here goes ur answer:-

This is a numerical of the chapter PERCENTAGE.

So, follow these steps..

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Total number of students in the class=50

Percentage of girls in the class=40%

So, number of girls in the class = 40 % of 50

= 40/100 × 50

= 2000/100

= 20

.•.Number of boys in the class = Total number of students in the class - Number of girls

= 50 – 20

= 30

So, the number of boys is $30$

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STEP BY STEP EXPLANATION: -

1》First note in the given values.

2》Then start the numerical.

3》You must be precise in calculation.

4》Then figure out the answer.