the distance between Delhi and Agra Rs 200 km A train travels the first hundred km at a speed of 50 km per hour how fast much the train travel the next hundred kilometres why should average 70 kilometre per hour for the whole journey
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Answer:
116+2/3 m/s
Explanation:
the train covers the first 100km at 50km/h,
thus, the total time taken to move the first hundred km is 100/50=2h
he had an average of 70km/h, total time taken to complete the journey is=200/70=(2+60/70)h.
he had taken 2h in completing the first 100km thus he had to cover remaining distance in 60/70 h.
we know,t=D/s
putting the values 60/70h=100km/s
s=100*70/60
s=700/6=116+2/3
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