Respuesta :

Answer:

32.4 s

Step-by-step explanation:

We are given that Chris ran=2.5 laps

Time taken by Chris=81 seconds

We have to determine the average time per lap.

In order to find the average time per lap we will divide total time by total number of laps.

Average time=[tex]\frac{81}{2.5}[/tex]

Average time=[tex]32.4 seconds[/tex]

Hence, the average time per lap=32.4 s