Running at an average rate of 4 meters per second, a sprinter ran to the end of a track. The sprinter then jogged back to the starting point at an average rate of 2 meters per second. The total time for the sprint and the jog back was 2 minutes 6 seconds. Find the length of the track

Answer 1

t and (126 -t)

4 t = 2 (126-t)

solve for t
then
d = 4 t or d = 2(126 - t)

Answer 2

378?