Answer:
The biggest decrease in time is 14.92 seconds.
Explanation:
Consider the provided table.
Consider the row 1.
The biggest decrease in time from the 1st leg to the 2nd leg is:
55.3 seconds - 40.38 seconds = 14.92 seconds
Hence, the decrease in time is 14.92 seconds
Consider the row 2.
The biggest decrease in time from the 1st leg to the 2nd leg is:
55.29 seconds - 40.402 seconds = 14.888 seconds
Hence, the decrease in time is 14.888 seconds
Consider the row 3.
The biggest decrease in time from the 1st leg to the 2nd leg is:
55.295 seconds - 40.4 seconds = 14.895 seconds
Hence, the decrease in time is 14.895 seconds
Consider the row 4.
The biggest decrease in time from the 1st leg to the 2nd leg is:
55.037 seconds - 41.2 seconds = 13.837 seconds
Hence, the decrease in time is 13.837 seconds
From the above calculation it is clear that the biggest decrease in time is 14.92 seconds.