A car travels 10 miles in 11 hours. What is its average speed?
The average speed is 0.90909091 mph.
How to work it out
- 1
Write down what you know: distance d = 10 miles, time t = 11 hours. You are asked for the speed v.
- 2
Use the formula speed = distance ÷ time:
- 3
Answer with the unit: 0.90909091 mph.
- 4
The same formula rearranged: distance = speed × time (0.90909091 × 11 = 10 miles) and time = distance ÷ speed (10 ÷ 0.90909091 = 11 hours).
LaTeX source of the formulas on this page
\[ v = \frac{d}{t} = \frac{10}{11} = 0.90909091\ \text{mph} \]
\[ v = \frac{d}{t} = \frac{10}{11} = \frac{10}{11} = 0.90909091 \]How far at 0.90909091 mph
| Time | Distance |
|---|---|
| 0.5 hours | 0.45454545 miles |
| 1 hour | 0.90909091 miles |
| 2 hours | 1.8181818 miles |
| 3 hours | 2.7272727 miles |
| 4 hours | 3.6363636 miles |
| 5 hours | 4.5454545 miles |
Questions
What is the speed if a car travels 10 miles in 11 hours?
The average speed is 0.90909091 mph.
How far does it go in 3 hours at that speed?
2.7272727 miles.