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Australian AMC 2023 - Upper Primary Question 22

AMC AUSTRALIA · Australian AMC 2023 - Upper Primary

Question 22

At a school concert, the tickets cost 20 dollars per adult and 2 dollars per child. The total paid by the 100 people who attended was 920 dollars. How many were children?
  1. between 25 and 35
  2. between 35 and 45
  3. between 45 and 55
  4. between 55 and 65
  5. between 65 and 75