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Australian AMC 2021 - Junior Question 19

AMC AUSTRALIA · Australian AMC 2021 - Junior

Question 19

Sandy, Rachel and Thandie collect toy cars. Altogether they have 300 cars. Rachel has grown up and decides to give her cars away. If she gives them all to Sandy, then Sandy will have 180. If she gives them all to Thandie, then Thandie will have 200. How many cars does Rachel have?

Question illustration
  1. 80
  2. 90
  3. 100
  4. 110
  5. 120