What was the biggest decrease in time from the 1st leg to the 2nd leg??

Answer:
The first one. 55.3 and 40. 38
Step-by-step explanation:
Subtract all of the second legs from the first legs that they go with and find the biggest number. When this is done, the first one has the biggest number.
Answer:
The biggest decrease in time is 14.92 seconds.
Step-by-step 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.