Bunuel wrote:
Waugh jogged to a restaurant at x miles per hour, and jogged back home along the same route at y miles per hour. He took 30 minutes for the whole trip. If the restaurant is 2 miles from home, what is the average speed in miles per hour at which he jogged for the whole trip?
(A) 0.13
(B) 0.5
(C) 2
(D) 4
(E) 8
Waugh walks 2 miles from the water to restaurant and back(total of 4 miles) in 30 minutes.
Therefore, the average speed at which Waugh completed this whole trip is 8 miles/hour
(Option E)
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61% (01:31) correct 
