Ankush and Babulal walk around circular track. They start at 9 a.m. from the same point in the oppositedirections. Ankush and Babulal walk at a speed of 3 rounds per hour and 5 rounds per hour respectively. Howmany times shall they cross each other until 10.30a.m.?
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Answer:
They will cross each other 12 times.
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Step-by-step explanation:
Whereas speed of Babulal = 5 rounds per hour = 1 round per 12 min. Let us consider Ankush as stationery at the starting point. This implies, In one hour Babulal crosses Ankush 8 times. So, starting from 9.00 am to 10.30 am i.e., 1.5 hours or 90 min, Babulal crosses Ankush 12 times.
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