SOLUTION: A train covered a distance of 250 km,partly at an average speed of 40 kmph and partly at 60 kmph. Find the distance covered at 40 kmph if it took 5 hrs for the train to cover the d
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Question 926247: A train covered a distance of 250 km,partly at an average speed of 40 kmph and partly at 60 kmph. Find the distance covered at 40 kmph if it took 5 hrs for the train to cover the distance Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A train covered a distance of 250 km,partly at an average speed of 40 kmph and partly at 60 kmph. Find the distance covered at 40 kmph if it took 5 hrs for the train to cover the distance
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d = distance at 40
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d/40 + (250-d)/60 = 5
Multiply by 120
3d + 2*(250-d) = 600
You can do the rest.
