A train travels first 800 km's at an average rate of 150 kmph and further travels the same direction at an average rate of 250 kmph . Determine the average speed of the train over the whole journey.? A. 187.5 kmph b. 200 kmph c. 205 kmph d. 195 kmph
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Average speed =V1+V2/2
So av speed=250+150/2=200
manetukaram1995:
thanks
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