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there are 12 boys and 10 girls in the gym class. If 6 more boys joined , how many more girls are needed to stay at the same ratio.
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5 votes
there are 12 boys and 10 girls in the gym class. If 6 more boys joined , how many more girls are needed to stay at the same ratio.

User Richzilla
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1 Answer

3 votes

(12)/(10)= (18)/(x)
cross multiply
12x=180
divide both sides by 12
x=15
if their is 10 girls, then you need 5 more to keep the ratio.

User Moritz Beutel
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6.2k points
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