# Find the Average Speed for the Whole Journey

A man completed 30 km of a journey at 6 km/h and the remaining 40 km of the journey in 5 hours. Find the average speed for the whole journey

- 70/11 km/h
- 7 km/h
- 155/2 km/h
- 8 km/h

**Answer: (2) 7 km / hr.**

**Explanation:-**

A man completed 30 km of a journey at 6 km/h.

Then, time taken by a man to complete 30 km = 30 / 6

= 5 hr.

The remaining 40 km of the journey in 5 hours.

Then, time taken by a man to complete 40 km = 5 hr.

**Formula-**

**Average speed of a man = Total distance covered by a man / Total time taken by a man to cover the total distance.**

Then, The average speed of a man = (30 + 40) /(5 + 5)

= 70 / 10

= 7 km / hr

Then, the average speed of a man is 7 km / hr.

Hence, the answer is (2) 7 km/hr.