Question 444972: From a point on a river, two boats are driven in opposite directions, one at 10 miles per hour and the other at 6 miles per hour. in how many hours will they be 64 miles apart? Answer by solver91311(17077) (Show Source):
You would think at first blush that the speed of the river current would make a difference in this problem. But if you consider that the current will have exactly the same effect on both boats, the actual speed of the current is immaterial.
If one boat is going 10 mph and the other 6 mph in the opposite direction, then the boats are moving apart at 10 + 6 = 16 mph. How long does it take to go 64 miles at 16 mph?
My calculator said it, I believe it, that settles it