A rider completes a certain journey in 20 hours. He covers half the distance at 30 km/hr and the rest at 70 km/hr. What is the total distance of the journey?

Asked by Topperlearning User | 10th Mar, 2014, 04:02: PM

Expert Answer:

Let the total distance of the journey = x km.

Then we have

Thus, the total distance of the journey is 840 km.

Answered by  | 10th Mar, 2014, 06:02: PM