Andy C. answered • 07/18/18

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What you did not say is that they reached the gym at the same time.

5 min 50 sec = 5 and 5/6 min = 35/6 min = 35/(6*60) hours = 7/(6*12) = 7/72 hr

distance = rate x time

25.2 (t + 7/72) = 37.8 t

25.2 t + 2.45 = 37.8 t

2.45 = 37.8t - 25.2 t

2.45 = 12.6 t

t=0.1944444.... = 0.194 = 11 min 40 seconds

Plugging this into the above equation shows that the distance is 7.35 km