A fast train takes 3 hours less than a slow train for a journey of 600 km. If the speed of the slow train was 10 km/h less than that of the fast train , find the speeds of the trains .

let the speed of slow train = x km/hr.

and the speed of fast train =( x+10) km/hr


Time to cover 600 km by slow  train = 600/x hrs.
Time taken by fast train to cover 600 km = 600/(x+10) hrs

∴According to question,

The speed of slow train = x km/hr = 40 km/hr

and the speed of fast train =( x+10) km/hr= 40+10= 50 km/ hr

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