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In Mathematics / High School | 2014-05-10

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

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

Asked by Anonymous

Answer (3)

1% = 100 1 ​ 45% = 100 45 ​ = 20 9 ​ t o t a l c hi l d re n : 420 b oys : 420 ⋅ 45% = 420 ⋅ 20 9 ​ = 21 ⋅ 9 = 189 g i r l s : 420 − 189 = 231

Answered by Lilith | 2024-06-10

total children = 420 boys = 45% of 420 = 189 boys Girls = (100-45)% = 55% of 420 = 231 boys

Answered by soniaagarwal09 | 2024-06-10

There are 189 boys and 231 girls in the school. This is found by calculating 45% of the total of 420 children for boys and subtracting that from the total for girls. Therefore, the breakdown is 189 boys and 231 girls.
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Answered by Lilith | 2025-01-15

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