Question

In a school, there are 300 students. Out of them,
there are 20% girls. Find the number of boys and
girls in the school.
(A) 244
(C) 240
(B) 242
(D) 249​

Answer 1

Answer:

240

Step-by-step explanation:

to find boys,

20/100 * 300 = 60

now, to find girls,

60/100*300 = 180

180 + 60 = 240

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Answer 2

Answer:

Required numbers of boys are 240 and numbers of girls are 60.

Step-by-step explanation:

Given,in a school, there are 300 students.

Total number students $= 300$

It is also given out of all students,there are 20% girls.

We know,

$x\% \: of \: y = \frac{x}{100} \times y$

By some examples,we can understand this concept more easily.

Example -1:

$5\% \: of \: 50 \\ = \frac{5}{100} \times 50 \\ = 2.5$

Example-2:

$8\% \: of \: 200 \\ = \frac{8}{100} \times 200 \\ = 16$

Here 20% of 300

$= \frac{20}{100} \times 300 \\ = 60$

So, number of girls $= 60$

and number of boys

$= (300 - 60) \\ = 240$

This is a problem of percentage.

Know more about percentage.

https://brainly.in/question/10002322

https://brainly.in/question/33820520

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