what were the total times of all the racers?
1:39.98, 1:43.72, 1:45.53, 1:47.67, 1:48.63, 1:51.31, 1:51.52, 1:57.30, 2:00.86, ,
of those racers what was the first place time?
1:39.98
of those racers what was the eighth place time?
1:57.30
what is the difference between the first place time and the eighth place time?
+17.32