a train covers a distance in 9 hours at the speed of 80 kilometre per hour how many time will it taken to cover the same distance if it moves 20 kilometre per hour slower
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Answer:
time= 9hrs
speed=80km/hrs
distance= speed*time
= 80*9
=720km (1)
distance=720km
speed =20km/hrs
time =distance/speed
=720/20
=36hrs
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