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23 September, 12:06

N a classroom of 33 students, the ratio of boys to girls is 3 : 8. How many boys are in the class?

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  1. 23 September, 13:52
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    3 boys + 8 girls = 11 students

    3 boys / 11 students = x boys / 33 students

    using cross products

    3 * 33 = x*11

    divide by 11

    99/11 = x

    x=9

    There are 9 boys
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