SOLUTION: When jack began his pursuit, Jill was already 60 miles ahead. If Jill travels at 40mph and jack travels at 60mph how many hours will it take jack to catch up with Jill?

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Question 534287: When jack began his pursuit, Jill was already 60 miles ahead. If Jill travels at 40mph and jack travels at 60mph how many hours will it take jack to catch up with Jill?
Answer by fcabanski(1391) About Me  (Show Source):
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D=RT. The distance Jack has to make up is 60 miles.


The rate at which Jack closes the distance is the difference in their speeds. 60-40=20mph. That's the rate at which Jack is closing that distance.


60 = 20t divide both sides by 20: 60/20=t=3 hours.