a circular field has a circumference of 360 kilometre to cycle based Sumit and
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Explanation:
Johan is the faster cyclist. When Johan crosses Sumeet he would have travelled the entire circular field more than Sumeet and will then be able to cross him and meet him again.
Johan completes one more round than Sumeet and when they meet he is one more round ahead of him, which in turn means that he has travelled 360 kms more than Sumeet when they meet.
Let the time at which they meet be equal to 't'.
15×t−12×t=360
3×t=360
Thus t=120 hours.
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