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16 October, 19:09

There are 700 pupils in a school. The ratio of girls to boys is 3:4. How many girls are there?

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  1. 16 October, 22:18
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    300

    Step-by-step explanation:

    Sum the parts of the ratio, 3 + 4 = 7 parts

    Divide the total by 7 to find the value of one part of the ratio.

    700 : 7 = 100 ← value of 1 part of the ratio, thus

    3 parts = 3 * 100 = 300 ← number of girls

    4 parts = 4 * 100 = 400 ← number of boys
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