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Mathematics, 14.10.2019 13:30 adstone814

Of the 15-year-olds at a karate school, 8 have black belts and 14 have brown belts. among the 16-year-olds, 7 have black belts and 12 have brown belts. which age group has a lower ratio of black belts to brown belts?

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Of the 15-year-olds at a karate school, 8 have black belts and 14 have brown belts. among the 16-yea...

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