Question
P walks around a circular field at the rate of one round
per hour while Q runs around it the rate of five rounds per hour. They start at same point at 8:25 am. They shall first cross each other at?Solution
Relative speed between P and Q = 5 – 1 = 4 rounds per hour They will cross when one will complete with relative speed, which is 1/4 hour = 15 minutes So, 8:25am + 15 minutes = 8:40 am
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