# What is the Average Speed of the Car? If

A car travels a distance of 75 km at the speed of 25 km/h. It covers the next 25 km of its journey at the speed of 5 km/h and the last 50 km of its journey at the speed of 25 km/h. what is the average speed of the car?

- 40 km/h
- 25 km/h
- 15 km/h
- 12.5 km/h

**Answer: (3) 15 km/hr**

**Explanation:-**

A car travels a distance of 75 km at the speed of 25 km/h.

Then, time taken by the car to cover the distance 75 km = 75/25

= 3 hr.

It covers the next 25 km of its journey at the speed of 5 km/h.

Then, time taken by the car to cover the distance 25 km = 25/5

= 5 hr

And the last 50 km of its journey at the speed of 25 km/h.

Then, time taken by the car to cover the distance 50 km = 50 / 25

= 2 hr.

Formula-

The average speed of the car = Total distance / total time taken by car to cover the total distance.

Then, the average speed of the car = (75 + 25 + 50) / (3 + 5 + 2)

= 150 / 10

= 15 km / hr

Then, the average speed of the car is 15 km/hr.

Hence, the answer is (3) 15 km/hr.