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Australian AMC 2015 - Senior Question 16

AMC AUSTRALIA · Australian AMC 2015 - Senior

Question 16

Three different dinosaur fossils have been found in the kingdom of Mathemania. Euleraptor is twice as old as Gaussasaurus, though when Gaussasaurus was alive Euleraptor was twice as old as Fermatops. The sum of the ages of the three fossils is 360 million years. How many million years after Fermatops did Gaussasaurus live?
  1. 120
  2. 40
  3. 80
  4. 60
  5. 20