Question

a train travelled a certaon distance at a uniform speed. If the train had been 7km/hr faster, it would have taken 14 hours less than the scheduled time.If the train were slower by 3km/hr then it would have taken 10 hours more than the scheduled time.Find the distance covered by the train​?​

Answer 1

Answer:

Step-by-step explanatiLet t be the usual time taken by the train to cover the distance

Let d be the distance, s be the usual speed

Usual time taken => d/s = t => d=ts

d/(s+6) = t-4

ts/(s+6) = t-4

ts = ts+6t-4s-24

6t - 4s - 24 = 0 --> (1)

d/(s-6) = t+6

ts = ts-6t+6s-36

-6t + 6s - 36=0 --->(2)

Solving (1) nd (2), v get

s = 30 km/h

t = 24 hrs

d = t * s

d = 30 * 24 = 720 km

Ans : 720 km

Answer 2

Answer:

Step-by-step explanation: