Chapter 2   


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Change Range


Rosa, Glen, Cathy, and Errol each bought snacks from several vending machines. Each person got back 6 coins, but they were different combinations of coins.

Each person received less than $1 in change. The machines returned only nickels, dimes, and quarters. Each person had at least one of each coin.

  • Rosa had the fewest dimes but the same number of quarters as Errol.
  • Glen had an equal number of nickels, dimes, and quarters.
  • Cathy had the same number of quarters as Glen.
  • Errol had more dimes than Cathy.
  • Cathy had more dimes than quarters.
  • Rosa had fewer quarters than Cathy.
Question: How much money did each person get back from the machines?

Bonus question: How much money did they get back in all?


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