Question

A boy travels 60 km. He travels (1/5)th of a distance with speed 12 km/h. Find the speed for the rest of the distance if he covers total distance in 5 hours.
1. 13 km/h
2. 12 km/h
3. 15 km/h
4. 16 km/h

Answer 1

Correct Answer - Option 2 : 12 km/h

Given:

Total distance = 60 km

Formula used:

Speed = Distance/Time

Time = Distance/Speed

Calculation:

(1/5)th of the distance = 12 km

12 km travels in 1 hour

Remaining distance = 60 - 12

⇒ 48 km

So, 48 km covers in 4 hours (i.e. 5 -1) hour

∴ Speed = 48/4 = 12 km/h