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In a 1 km race A beats B by 40 seconds, and in another 1 km race B beats C by 200 m. A runs at 6.25 m/s. By how many metres would A beat C over 1 km?

Competition practiceRaces & Circular Tracks
  • A360 m
  • B240 m
  • C400 m
  • D300 m

Step-by-Step Solution

A takes s; B takes 200 s, speed 5 m/s. C runs 800 m in 200 s: 4 m/s. In A's 160 s, C covers 640 m, so A wins by 360 m.
Answer: A) 360 m

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