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Math Help - percentage

  1. #1
    james288999
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    Lightbulb percentage

    In a survey, it is found that 567 pupils, represening 42% of the total srength of a school come by school bus. If 4% come by car, 540 come on foot and rest use their bicycles find:
    1 the total strength of the school.
    2 the percentage of pupils using their bicycles.
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  2. #2
    Member Glaysher's Avatar
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    1.

    42% of strength is 567
    1% of strength is \frac{567}{42}=13.5
    100% of strength is 13.5 \times 100 = 1350
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  3. #3
    Member Glaysher's Avatar
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    2.

    On foot \frac{540}{1350} \times 100 = 40%

    On bicycle 100 - 40 - 42 - 4 = 14%

    14% 1350 \times 0.14 = 13.5 \times 14 = 189
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