3. There are 20 boys and 30 girls in a class. The ratio of the number of girls to the number o boys is (a) 2:3 (b) 3:2 (c) 2:5 (d) 3:5
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Answer:
the answer is 2:3
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a. 2 : 3
20 : 30
20 ÷ 10 = 2
30 ÷ 10 = 3
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