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A completes a lap of a circular track in 40 s. When A and B run in opposite directions from one point, they meet every 24 s. If they run the same way, how often does A pass B?

Competition practiceRaces & Circular Tracks
  • A120 s
  • B60 s
  • C64 s
  • D16 s

Step-by-Step Solution

Per second A covers lap and both together , so B covers lap. Same way: lap per s, so every 120 s.
Answer: A) 120 s

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