What is the average speed of the marathon runner over the two routes?

To determine the average speed of the marathon runner over the two routes, it's essential to consider the definition of average speed, which is the total distance traveled divided by the total time taken.

Assuming that the two routes have different distances and the times taken to complete each route are known, the formula for average speed can be applied. For example, if the total distance covered by the runner is the sum of the distances of the two routes, and the total time is the sum of the times taken for those two routes, then calculating the average speed involves dividing the total distance by the total time.

If the average speed calculated as a result of this division results in 6 mph, it indicates that after considering both routes and their respective times, the average speed maintains that value. This average effectively gives a meaningful representation of the runner's overall speed across the entirety of the marathon.

In scenarios where the calculation methods lead to different average speeds, factors such as distance length and time taken to complete each route will impact the final figure. The accuracy of identifying the average speed relies on meticulous adherence to the definitions and ratio calculations involving distance and time. Therefore, when 6 mph presents itself as the derived value through correct calculations based on provided data, it substantiates