A car travels 310 miles in 1 hour. What is its average speed?
The average speed is 310 mph.
How to work it out
- 1
Write down what you know: distance d = 310 miles, time t = 1 hour. You are asked for the speed v.
- 2
Use the formula speed = distance ÷ time:
- 3
Answer with the unit: 310 mph.
- 4
The same formula rearranged: distance = speed × time (310 × 1 = 310 miles) and time = distance ÷ speed (310 ÷ 310 = 1 hour).
LaTeX source of the formulas on this page
\[ v = \frac{d}{t} = \frac{310}{1} = 310\ \text{mph} \]
\[ v = \frac{d}{t} = \frac{310}{1} = 310 \]How far at 310 mph
| Time | Distance |
|---|---|
| 0.5 hours | 155 miles |
| 1 hour | 310 miles |
| 2 hours | 620 miles |
| 3 hours | 930 miles |
| 4 hours | 1240 miles |
| 5 hours | 1550 miles |
Questions
What is the speed if a car travels 310 miles in 1 hour?
The average speed is 310 mph.
How far does it go in 3 hours at that speed?
930 miles.