Question

A train travels a distance of 480 km at a uniform speed if the speed had been 8 kilometre less than it would have taken 3 hours more to cover the same distance we need to find the speed speed of the train Ok Google

Answer 1

let the speed be x km/hr
distance =480km
time= distance /speed = 480/x hrs
according to question -
(x-8)(480/x+3)=480
....this is the equation now u can solve it

Answer 2

heya ,
it's Aastha......
,Distance travelled by the train = 480 km
Let the speed of the train be x kmph
Time taken for the journey = 480/x
Given speed is decreased by 8 kmph
Hence the new speed of train = (x – 8) kmph
Time taken for the journey = 480/(x – 8)�

1280 = x2�– 8x
�x2�– 8x – 1280 = 0
On solving we get x = 40
Thus the speed of train is 40 kmph