Question 902234
Running at an average rate of 7 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 3 meters per second. The total time for the sprint and the jog back was 3 minutes 30 seconds. Find the length of the track.
<pre>
{{{D/7 + D/3 = 210}}}
Solve for D, the length of the track
It is that SIMPLE!!
Then do a check!! 

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