Math in the News: Walking vs. Running

Researchers say that walking is as good for you as running, but you’ll have to walk approximately twice as long for comparable benefits.

In Jenny Hope’s article on Mail Online, Paul T Williams of Berkeley National Laboratory in California “estimates a person would need to walk 4.3 miles at a brisk pace to have the same amount of exercise as running 3 miles. It would take twice as long – around an hour and 15 minutes instead of 38 minutes.”

Using the information listed, what rate do you have to walk to get the same benefit as jogging? By dividing the distance by the time, we calculate 4.3 miles divided by 1.25 hours (1 hour and 15 minutes), resulting in a rate of 3.44 mi/h.

What is the jogging rate? Using the same method, we calculate 3.0 miles divided by 0.633 hours (38 minutes), which is a rate of about 4.74 mi/h.

To learn more about rate, distance, and time, check out Chapter 1 of Math & YOU.

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