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Caitlin goes for a 6 mile hike up a hill. She returns down by the same path. She walks uphill at an average speed of 2 miles per hour, and down the hill at an average of 4 miles per hour.What is Caitlin’s average speed (in miles per hour) for her whole hike?

Please give me answers quickly!

 Jun 7, 2018
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I am going to assume it is 6 miles ONE way  (6 miles up a hill)

6 m / 2m/hr = 3 hrs

Down

6 m / 4 m/r = 1.5 hrs

 

total miles = 12   total time = 4.5 hrs

12 m / 4.5 hr = 2.67 m/hr

 Jun 7, 2018

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