A train travelling at 96 km/h covers a
certain distance in 40 minutes. If the
speed of the train is increased by 4 km/h,
by how much is the time taken reduced?
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Answered by
2
Answer:1.60 min
Step-by-step explanation:
In both cases distance will be same
Speed1=96
Time1=40 min=2/3 hr(si unit)
Distance=speedxtime=96x2/3=64km
Speed2=96+4=100
Distance=64(distance is same)
Time=distance/speed=64/100=0.64hr=0.64x60=38.40 min
Therefore time is reduced by, = 40-38.40=1.60 min
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