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Bebras 2022 - Level 3 Question 10

BEBRAS · Bebras 2022 - Level 3

Question 10

Five people go cycling together in the starting order shown below.

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They normally ride at the same speed to preserve their order and keep relatively small gaps. However, every 15 minutes the person at the front slows down, allows the others to overtake, and moves to the last position.

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The first person to finish completes a journey lasting 8 hours 39 minutes. Who is it?
  1. Alex
  2. Bean or Chris
  3. Dean
  4. Erik