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11 October, 05:48

A grade has 81 girls and 72 boys. The greatest split into groups that have the same ratio girls the boys as a whole grade. How many girls are in a group that has 16 boys?

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  1. 11 October, 07:31
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    A grade has 81 girls and 72 boys. The greatest split into groups that have the same ratio girls the boys as a whole grade.

    => Find how many girls are in a group that has 16 boys

    Formula and Ratio:

    => 81 : 72 = x : 16 - we need to find the value of girls or the number of girls in the given ratio.

    => 16 * 81 = 1 296

    => 1 296 / 72 = 18

    Therefore the value of girls numbers is 18. The new ratio will be:

    18 : 16
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