Georgie is building a fence. He builds his fence at a constant rate of 1/3 section of fence every 1/2 hour. At this rate, what fraction represents the section of fence Georgie can build per hour? Express your
answer as a fraction.

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?