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14-04-2021
Mathematics

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The ratio of boys to girls in class is 4 : 5
What fraction of the class are boys

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14-04-2021

Answer:

The ratio of boys to girls is 4:5. So let 4x be the number of boys and 5x be the number of girls. Then 4x+5x = 9x is the total number of students. Then the fraction of boys in the class is 4x/9x = 4/9.

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