Faster
You traveled three hours at a certain speed. If you had taken minute less to do each mile you would have gone miles farther than you actually did.
How far did you go?
The answer is 60.
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1 solution
Assume that the actual distance = "d" and the speed is "v"
t 3 v where = v d + 3 0 = v d + 3 0 = d 3 0 : " d " is the number of minutes saved . 1 2 .
solve (1) and (2) ---> "d" = 60 mile