two train are moving in the opposite direction at a speed of 90 km per hour and the 100km per hour respectively after 2 hour , the distance between the train is
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Step-by-step explanation:
Relative speed =(60+90)km/hr=150km/hr=150×
18
5
m/sec=
3
125
m/sec
Distance covered by the slower train to cross the faster train =(1.1+0.9)km=2km=2000m
The time taken by the slower train to cross the faster train in second =
speed
distance
=
3
125
2000
=16×3=48 seconds
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