A person Drove from 8am Tuesday to 5pm Wednesday. Total drive 3 9 6 miles. He have lunch for 3 0 mins on Tuesday and sleep overnight from 7pm Tuesday and go back to drive at 5am Wednesday. On Wednesday he have 3 0 min for lunch. What is the average speed that he drives

Average speed = 18 miles / H

Explanation:

The average speed with which the person traveled is calculated from the total distance traveled and the total time driven.

The time during which the person was traveling is:

Total time = 33H

Lunch Tuesday = 0.5H

Sleeping = 10H

Lunch Wednesday = 0.5H

Effective driving time = 33H - 0.5 - 10H - 0.5H = 22H

Distance traveled = 396Miles

Average speed = 396/22 = 18 miles / H