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IKMC 2005 - Grades 11-12 - Self-study Question 11

IKMC · IKMC 2005 - Grades 11-12 - Self-study

Question 11

Mom Kangaroo and Jumpy move around a stadium of perimeter 330 m. Each makes one leap per second: Mom 5 m and Jumpy 2 m. They start together at the same point and in the same direction. After 25 seconds Jumpy stops while Mom continues. How long does it take her to overtake Jumpy?

Question illustration
  1. 15 sec
  2. 24 sec
  3. 40 sec
  4. 51 sec
  5. 66 sec