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2 December, 15:28

A class of 28 students. the ratio of girls of 3 girls 4 boys. what is the ratio for the number of boys to total number students in the class?

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  1. 2 December, 17:51
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    You need to make a proportion. Cross multiply then divide

    boys 4 x

    students 7 28

    (4) (28) = 7x

    112 = 7x

    x = 16

    There are 16 boys
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