CBSE Class 10 Answered
fast train takes 3hrs less than slow train for 600km speed of slow train10km/hr less than fast trai
Asked by | 23 May, 2009, 12:21: PM
Expert Answer
Let speed of fast train be x.
Speed of slow train= x-10.
As per question:
600/x = 600/(x-10) -3
600(1/(x -10)- 1/x)=3
x(x-10)=2000
x2-10x-2000=0
Hence x=50
Speeds of train are 50 km/h and 40 km/h.
Answered by | 23 May, 2009, 03:38: PM
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