Answer:
17.32 seconds
Explanation:
To solve this problem we need to the instances given:
Number of friends = 4;
Distance covered = 100yards
Now, sentence by sentence;
Jason ran the race = 17.32 seconds
Bill ran the race 1.78 seconds faster than Jason;
Bill's time = 17.32 + 1.78 = 19.1 seconds
Bill's time was 0.84 seconds more than Art's;
Art's time = 19.1 + 0.84 = 19.94 seconds
Pablo's time was 1.23 seconds less than Bill's,
Pablo's time = 19.1 - 1.23 = 17.87 seconds
The winning would be that of the friend with the lowest time, the lower the time higher the speed.
So Jason's time is the winning time = 17.32 seconds