Question

A train travelling at uniform speed can complete a journey class by 4 hours at a speed 6 km per hour more than average speed if the speed is less by 6 km per hour then the general will take 6 hours more what is the distance of the journey

Answer 1

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 hope this helps.