Two runners are running on a circular track in the same direction. The speed of slower runner is 10 m/s and that of faster runner is 12 m/s. If they meet after 6 minutes for the first time, then what is the length of the track?
Explanation:
Let they meet for the first time at point P on the track.
It is to be noted that the faster runner would have covered the same distance as the slower runner plus 1 full round of the track from P to point when they first meet.
Now, for every second, the faster runner covers 2 m more.
So, in 6 min, he can cover 720 m more.
This extra distance must be the length of the track.
Hence, option (b).
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