2 girls join the choir, what wil be the new ratio of boys to girls?
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There are 4 boys: 3 girls
4/7 boys and 3/7 girls
if 1 seventh = 6
2 girls join 18+2=20
new ratio = 24:20 = 6:5
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b= boys , g= girls
b= g+ 6
4g= 3g+ 18
so there are 24 boys and 18 girls, and if 2 more girls are added, there will be 20 girls, and the ratio of boys to girls will be
24/20 boys to girls; simplified it's 6 to 5 boys to girls.
by Roberta McIlroy
by Devika Primić
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