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Anonymous Anonymous
  • 06-01-2016
  • Mathematics
Answered

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

Verified Answer :

DarkBlue
DarkBlue DarkBlue
  • 06-01-2016

b+g=400
b/g=3:2 =>b=3/2g
3/2g+g=400 => 5/2 g=400 => g=2
400/5=280=160 
b=3/2
160=3*80=240

Answer Link
ameeki
ameeki ameeki
  • 06-01-2016

3+2 = 5

400/5 = 80

80 * 3 = 240

240 boys, and 160 girls.

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