Question

At 10:00 AM a truck started traveling from point A with a speed of 40mph. 3 hours and 10 minutes later a car started to drive from point A in the same direction with an average speed of 60mph. At what time will the car catch up with the truck?

Answer 1

7:30 pm that is the answer i solved it

Answer 2

7:30 pm

Explanation:

The difference in speed is 20 mph, half as fast as the truck's speed. This is the speed at which the gap is closed. So, the head start that the truck has will be closed in a time after the car started that is twice as long as the time before the car started. That is, they will meet at ...

10:00 + 3:10 + 2×3:10

= 13:10 + 6:20 = 19:30 . . . . . 7:30 pm