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Every hour, a runner is able to run the same number of miles. If on his 3rd hour of running he has gone 15 miles, and on his 5th hour of running he has gone 25 miles, what is the rate at which he runs?

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ChoiSungHyun

Step-by-step explanation:

15 miles / 3 hours = 5 miles per hour.

25 miles / 5 hours = 5 miles per hour.

The runner runs at 5 miles per hour.