Toniac 123 can you me with these questions. they are part of of the question you answered. there is another question i posted. if you can , can you me with both. and good luck.

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. how many hours after the truck's departure will the two meet?