A train is booked to run between two places 55km apart in 1hr 20min. If it travels for first 30km at 36km an hour, at what speed must it travel for the rest of the distance in order to complete the journey in time ?
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Answered by
7
distance=55km
speed=36km/hr for 30km
time=distance/speed=
30/36=5/6
then rest of the distance =
55-30=25km
time=80-50=30min=1/2 hr
speed for 25km=distance/time=
25km/1/2hr=
25km*2/1 hr=50km/hr
therefore, speed for rest of the distance=50km/hr.....
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Answered by
0
distance =30 km
speed =36km/hr
time = 50 minute for initial distqnce
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