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26 June, 08:01

The ratio of boys to girls in the class is 4:5. How many boys are there if there are 27 students?

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  1. 26 June, 08:21
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    12 boys

    Step-by-step explanation:

    boys : girls

    4 : 5

    Add a total column

    boys : girls: total

    4 : 5 : 4+5 = 9

    To get to a total of 27 we multiply each term by 3

    boys : girls: total

    4*3 : 5*3 : 9*3

    12 : 15 : 27

    There are 12 boys
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