Mathematics · Speed, Time and Distance
Two runners A and B start simultaneously from the same point on a circular track of length 840 m and run in the clockwise direction. The speed of A is 7 m/s and the speed of B is 5 m/s. At what distance from the starting point in the clockwise direction and after how many complete rounds by A, does A meet with B again for the first time?
- 1420 m after completing 2 rounds
- 2210 m after completing 3 rounds
- 3420 m after completing 3 rounds✓
- 4210 m after completing 2 rounds
Correct answer
420 m after completing 3 rounds
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