Question
The ratio of number of boys and girls in a factory of
660 workers is 7:5. How many more girls should be joined to make the ratio 1:1?Solution
Number of boys = (660 à 7/12) = 385 Number of girls = (660 - 385) = 275 ⴠ   Number of girls to be joined = (385 - 275) = 110
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