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Q: The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio? 
A. 17 : 18 B. 21 : 22
C. 8 : 9 D. Cannot be determined

Answer and Explanation

Answer:21 : 22

Explanation:

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