Question

The record for the Boston Marathon's wheelchair division is 1 hour, 18 minutes, and 27 seconds.

Answer 1

Given Boston Marathon distance = 26.2 miles = 42164.81 m

And the record time to cover this distance is 1 hour 18 minutes and 27 seconds.

Let us convert that time to seconds = 1*60*60+18*60+27 = 4707 seconds

Average speed = $\frac{total distance}{elapsed time}$

                          = $\frac{42164.81}{4707} = 8.96 m/sec$

Time taken to complete 30 miles(48280.3 meters) at 8.96 m/sec is =

                          $\frac{distance}{average speed} = \frac{48280.3}{8.96} = 5388.4 seconds$ = 1 hour 29 minutes 48 seconds