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the ratio of boys to girls at a school program is 3 to 7. how many girls and present if 690 students attend the program?
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the ratio of boys to girls at a school program is 3 to 7. how many girls and present if 690 students attend the program?

User Sheodox
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1 Answer

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Total ratio = 3+7 = 10

Value of 1 ratio unit = 690/10 = 69

number of girls = 69*7 = 483

User Wdudzik
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