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There are 20 girls and 15 boys in a class. (a) What is the ratio of number of girls to the number of boys? b) What is the ratio of number of girls to the students in the class? |
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Answer» Number of boys in the class ` =15` Number of girls in the class ` = 20` Total number of students in the class ` = 20+15 = 35` `:.` Ratio of number of girls to the number of boys` = 20/15 = 4/3 = 4:3` Ratio of number of girls to the students in the class `= 20/35 = 4/7 = 4:7` |
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