Puala and kelly are comparing their ruining times.

Puala completed a 10-mile run in 65 minuets.

Kelly completed 10-kilometre run in 40 minuets.

Given that 8 kilometre are equal to 5 miles, whch girl has the greatest average speed?

If 8 km equals 5 miles then that means Paula ran 16 kilometers in 65 minutes.

And we already know that kelly ran 10 kilometers in 40 minutes

do 40/10 which is 4 and 65/16 which is 4.062

Therefore Paula had the greatest average speed