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dude145
dude145 dude145
  • 23-10-2016
  • Mathematics
Answered

Of the 15-year-olds at a karate school, 6 have black belts and 20 have brown belts. Among the 16-year-olds, 5 have black belts and 9 have brown belts. Which age group has a higher ratio of black belts to brown belts?

Verified Answer :

paula270 paula270
  • 23-10-2016

11 black and 29 brown

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