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The are 15 girls and 15 boys
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26 Jun 2020, 09:26
26 Jun 2020, 09:26
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Question Stats:
97% (00:53) correct
2% (02:52) wrong based on 35 sessions
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The are 15 girls and 15 boys in the first grade classroom. No girls are to be added or removed from the classroom. What is the least number of the boys that can be removed from the class so that the ratio of girls to boys is 5 to 3 ?
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Re: The are 15 girls and 15 boys
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26 Jun 2020, 09:27
26 Jun 2020, 09:27
Expert Reply
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
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Re: The are 15 girls and 15 boys
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27 Jun 2020, 02:09
27 Jun 2020, 02:09
1
Remove 1 boy, ratio of girls to boys = \(\frac{15}{14}\)
Remove 2 boys, ratio of girls to boys = \(\frac{15}{13}\)
Remove 3 boys, ratio of girls to boys = \(\frac{15}{12}\)
Remove 4 boys, ratio of girls to boys = \(\frac{15}{11}\)
Remove 5 boys, ratio of girls to boys = \(\frac{15}{10}\)
Remove 6 boys, ratio of girls to boys = \(\frac{15}{9}\) = \(\frac{5}{3}\) --> Answer
Remove 2 boys, ratio of girls to boys = \(\frac{15}{13}\)
Remove 3 boys, ratio of girls to boys = \(\frac{15}{12}\)
Remove 4 boys, ratio of girls to boys = \(\frac{15}{11}\)
Remove 5 boys, ratio of girls to boys = \(\frac{15}{10}\)
Remove 6 boys, ratio of girls to boys = \(\frac{15}{9}\) = \(\frac{5}{3}\) --> Answer
