A person walked 1.5 miles in 28 minutes and then jogged 1.2 miles in 10 minutes.
What was the average speed in miles per minute?
Answer (2)
s = t d , w h ere s − s p ee d , d − d i s t an ce , t − t im e s 1 = 28 1.5 = 280 15 = 56 3 s 2 = 10 1.2 = 100 12 = 25 3 s a = 2 56 3 + 25 3 = 2 1400 75 + 1400 168 = 1400 243 ⋅ 2 1 = 2800 243 min u t e mi l es
The total distance traveled by the person is 2.7 miles, and the total time taken is 38 minutes. Therefore, the average speed is approximately 0.0711 miles per minute. This calculation uses the formula for average speed as distance divided by time.
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