Find the best answers to your questions with the help of IDNLearn.com's knowledgeable users. Whether it's a simple query or a complex problem, our experts have the answers you need.

There are 420 children in a school. 45% of the pupils are boys.

How many boys are there?
How many girls are there?


Sagot :

total children = 420
boys = 45% of 420 = 189 boys
Girls = (100-45)% = 55% of 420 = 231 boys
[tex]1 \% = \frac{1}{100} \\ \\ 45 \% =\frac{45}{100}=\frac{9}{20}\\ \\ total \ children : 420 \\ \\ boys : \\ \\420 \cdot 45 \% = 420 \cdot \frac{9}{20}= 21\cdot 9 =189 \\ \\ girls : \ \\ \\ 420 -189 = 231[/tex]
Your engagement is important to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. Thank you for visiting IDNLearn.com. We’re here to provide accurate and reliable answers, so visit us again soon.