A train is to traverse between a &b. if it travels by 50kmph it got late by 15 min. if it travels by 36 kmph it got late by 50 min.find out the speed of the train.
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x is time
there was distance is constant
distance=speed*time
speed1*time1=speed2*time2
50×(x+15)/60=36×(x+50)/60
50×(x+15)=36(x+50)
50x+750=36x+1800
14x=1050
x=75
train reach on 75min or 1h 15min
if speed is 50 kmph distance= 50*(90/60)
=75 km
speed=75*4/5=60kmph
train should travel 60kmph to reach on time
there was distance is constant
distance=speed*time
speed1*time1=speed2*time2
50×(x+15)/60=36×(x+50)/60
50×(x+15)=36(x+50)
50x+750=36x+1800
14x=1050
x=75
train reach on 75min or 1h 15min
if speed is 50 kmph distance= 50*(90/60)
=75 km
speed=75*4/5=60kmph
train should travel 60kmph to reach on time
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