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The ratio of boys to girls in a high school is found to be three to five. If a class has 12boys, how many girls would you expect to be in the class?
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43 votes
43 votes
The ratio of boys to girls in a high school is found to be three to five. If a class has 12boys, how many girls would you expect to be in the class?

User KhorneHoly
by
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2 Answers

15 votes
15 votes

Answer:

20 girls

Explanation:

Divide 12 by 3 : 12/3 = 4

Multiply 4 by 5 : 4*5 = 20

User Michael Kohl
by
2.5k points
16 votes
16 votes

Answer:

20 girls

Explanation:

boys: girls

3 5

There are 12 boys

12/3 = 4

Multiply each side by 4

boys: girls

3*4 5*4

12 20

User Ryan Reich
by
3.2k points
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