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A car travels first half of a certain distance with uniform speed of 20 km/h and travels second half distance in two equal time interval with uniform speed 25 km/ h and 35km/h respectively . Find the average speed of car for entire journey

Answer» A car travels first half of a certain distance with uniform speed of 20 km/h and travels second half distance in two equal time interval with uniform speed 25 km/ h and 35km/h respectively . Find the average speed of car for entire journey


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