Answer:
Explained
Step-by-step explanation:
average speed from Tallahassee to Gainesville is 30miles/hour
and the total average speed of the whole trip is 40 miles/hour
let the average speed in return journey be x miles per hour.
we know that if the distance is constant the average speed of the whole trip is given as
on calculating we get x= 60 miles/hour
now, since the distance between two places is always constant, the result does not matter on the distance between two places. The average speed will remain the same.