a train is booked to do the run between two places, 55km apart, in 1hr20 min. if it travelsfo the 1st 30 km at 30km per hour, at what speed must it travel for the rest of the distance in order to complete its journey
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speed for first 30 km= 30km/hr
distance = 30 km
distance left = 25km
time left= 20min = 1/3 hr
speed=d/t
speed= 75 kmph
distance = 30 km
distance left = 25km
time left= 20min = 1/3 hr
speed=d/t
speed= 75 kmph
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