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2. A light house is located at A 2km off-shore from the nearest point O on a straight beach and a shop is located at B of the beach at a distance of 4km from O. If the housekeeper can row with motor boat at the speed of 4 km/h and can walk at the rate of 6 km/h where shoul he plan to reach the shore so as to cover the distance to the shop in the least possible.

Answer» 2. A light house is located at A 2km off-shore from the nearest point O on a straight beach and a shop is located at B of the beach at a distance of 4km from O. If the housekeeper can row with motor boat at the speed of 4 km/h and can walk at the rate of 6 km/h where shoul he plan to reach the shore so as to cover the distance to the shop in the least possible.


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