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8 September, 06:04

The ratio of boys to girls in Ella's grade is 3/4 the ratio of boys to girls in minhs grade is 4 to 5 each grade has a total of 20 girls how many boys are in each grade

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  1. 8 September, 06:15
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    Ella's Grade: 15

    Minh's Grade: 16

    Step-by-step explanation:

    If each grade has 20 girls in the grade, then that implies effectively that the ratios would apply via fractions, which are 3:4 and 4:5. As such, take both Fractions and increase them both to 20: 15:20 and 16:20.
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