Race and Rest

Algebra Level 2

Allan, Bryan, and Charles are going to race in a 100 km track.

  • Allan can move 30 km in 60 minutes and need to stop for 30 minutes to regain stamina.
  • Bryan can move 20 km in 40 minutes and need to stop for 20 minutes to regain stamina.
  • Charles can move 10 km in 20 minutes and need to stop for 10 minutes to regain stamina.

When they reached 100 km they don't need to regain stamina anymore.

Which of the statements is correct?

  • A. Allan is the fastest.
  • B. Bryan is the slowest.
  • C. Charles finish the race in 290 minutes.
  • D. Allan and Charles finish the race in same time.
  • E. Bryan finish the race in 280 minutes.
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