The jogging track in a sports complex is 726 metres in circumference. Pradeep and his wife start from the same point and walk in opposite directions at 4.5 km/h and 3.75 km/h, respectively. They will meet for the first time in
Since Pradeep and his wife are going in the opposite direction, their relative velocity will be added.
Their relative velocity = 4.5+3.75 = 8.25 km/hr = 137.5 m/min
Time taken to cover 726 meters = $$\ \frac{\ 726}{137.5}\ =\ 5.28$$ minutes
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