If both A and B start simultaneously from P and Q respectively, how long will they take to meet for the third time (hours)?
Explanation:
Since the ratio of speeds of faster person to slower person is less than 2,
Time taken to meet nth time = 2n-1DRs
where, D = distance between the end points. Rs = Relative speed of the people running.
Here, time taken to meet for the third time = 2×3-1×10010+15=20hours.
Hence, option (c).
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