Question

The speed of a fast train from Delhi to Srinagar is 100 km/h more than the speed of a slower one. If the speed of the fast train is x, then find the speed of the slow train.​

Answer 1

x-100

given that speed of train is x and it is 100 kmph faster than slower train

therefore,

slower train is 100kmph slower than faster train

hence, x-100