Question

a guy bikes 15 miles in 1 hour, then he bikes 25 miles in 2 hours, what was his average speed?

Answer 1

To find the average speed, you can use the formula:

\[
\text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}}
\]

First, calculate the total distance and total time:

1. **Total Distance**:
- First part: 15 miles
- Second part: 25 miles
- Total Distance = 15 miles + 25 miles = 40 miles

2. **Total Time**:
- First part: 1 hour
- Second part: 2 hours
- Total Time = 1 hour + 2 hours = 3 hours

Now, plug the total distance and total time into the average speed formula:

\[
\text{Average Speed} = \frac{40 \text{ miles}}{3 \text{ hours}} \approx 13.33 \text{ miles per hour}
\]

So, the average speed is approximately **13.33 miles per hour**.