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The ratio of boys to girls at a middle school is 3:2. If the school has 400 people, how many will be boys?
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The ratio of boys to girls at a middle school is 3:2. If the school has 400 people, how many will be boys?

User Michael Kazarian
by
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2 Answers

1 vote
b+g=400
b/g=3:2 =>b=3/2*g
3/2g+g=400 => 5/2 g=400 => g=2*400/5=2*80=160
b=3/2*160=3*80=240
User Krenom
by
7.8k points
6 votes
3+2 = 5

400/5 = 80

80 * 3 = 240

240 boys, and 160 girls.

Any questions? Just message me :)
User NiceToMytyuk
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8.7k points
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