On a 300 m track, Anil runs clockwise at 2 m/s, Babli anticlockwise at 3 m/s and Charu clockwise at 5 m/s, all from the same point at the same moment. After how many seconds are all three together for the first time?

Question

Accepted Answer

300 s. Anil-Babli meet every 300/5=60 s; Anil-Charu every 300/3=100 s; Babli-Charu every 300/8=37.5 s. The first time that is a multiple of all three is 300 s.

On a 300 m track, Anil runs clockwise at 2 m/s, Babli anticlockwise at 3 m/s and Charu clockwise at 5 m/s, all from the same point at the same moment. After how many seconds are all three together for the first time?

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