Seudónimo Seudónimo
  • 11-05-2017
  • Mathematics
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Аноним Аноним
  • 11-05-2017
answer is A. first choice

Aver. 14 - 17 years old = 75/11 = 6.8
Aver. 10 - 13 years old = 47/11 = 4.27
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