Answer : 2 24 kmph Explanation : Answer: B) 24 kmph Explanation: Total time taken = k/40 2k/20 hours= 5k/40 = k/8 hours Average speed = 3k/(k/8) = 24 kmph.

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A train covered k km at 40 kmph and another 2k km at 20 kmph. Find the average speed of the train in covering the entire 3k km ?

Answer : 2 24 kmph Explanation : Answer: B) 24 kmph Explanation: Total time taken = k/40 2k/20 hours= 5k/40 = k/8 hours Average speed = 3k/(k/8) = 24 kmph.

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