A train travels first 300 km at an average speed of 30 km/hr and further travels the same distance at an average speed of 60 km/hr. Average speed over the total distance is
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average speed=total distance travelled/total time taken
total distance here is300km+300km=600km.
total time taken=(300km/30kmph)+(300km/60kmph)
=10hr+5hr=15hr
now avg. speed =600km/15hr =40km/h or 40kmph
total distance here is300km+300km=600km.
total time taken=(300km/30kmph)+(300km/60kmph)
=10hr+5hr=15hr
now avg. speed =600km/15hr =40km/h or 40kmph
nikhil1000:
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40km per hour is the ans
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