A car travels 500 miles in 11 hours. What is its average speed?
The average speed is 45.454545 mph.
How to work it out
- 1
Write down what you know: distance d = 500 miles, time t = 11 hours. You are asked for the speed v.
- 2
Use the formula speed = distance ÷ time:
- 3
Answer with the unit: 45.454545 mph.
- 4
The same formula rearranged: distance = speed × time (45.454545 × 11 = 500 miles) and time = distance ÷ speed (500 ÷ 45.454545 = 11 hours).
LaTeX source of the formulas on this page
\[ v = \frac{d}{t} = \frac{500}{11} = 45.454545\ \text{mph} \]
\[ v = \frac{d}{t} = \frac{500}{11} = \frac{500}{11} = 45.454545 \]How far at 45.454545 mph
| Time | Distance |
|---|---|
| 0.5 hours | 22.727273 miles |
| 1 hour | 45.454545 miles |
| 2 hours | 90.909091 miles |
| 3 hours | 136.36364 miles |
| 4 hours | 181.81818 miles |
| 5 hours | 227.27273 miles |
Questions
What is the speed if a car travels 500 miles in 11 hours?
The average speed is 45.454545 mph.
How far does it go in 3 hours at that speed?
136.36364 miles.