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Australian AMC 2022 - Middle Primary Question 20

AMC AUSTRALIA · Australian AMC 2022 - Middle Primary

Question 20

A can filled with 30 marbles weighs 115 g. The same can with 20 marbles weighs 85 g. How much does the empty can weigh?
  1. 10 g
  2. 20 g
  3. 25 g
  4. 30 g
  5. 55 g