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Start the planAn athlete runs \(R\) miles in \(H\) hours, then rides a bike \(Q\) miles in the same number of hours. Which of the following represents the average speed, in miles per hour, for these two activities combined?
(A) \(\dfrac{R-Q}{H}\)
(B) \(\dfrac{R-Q}{2H}\)
(C) \(\dfrac{2(R+Q)}{H}\)
(D) \(\dfrac{2(R+Q)}{2H}\)
(E) \(\dfrac{R+Q}{2H}\)
Answer: E
Source: GMAT Prep
(A) \(\dfrac{R-Q}{H}\)
(B) \(\dfrac{R-Q}{2H}\)
(C) \(\dfrac{2(R+Q)}{H}\)
(D) \(\dfrac{2(R+Q)}{2H}\)
(E) \(\dfrac{R+Q}{2H}\)
Answer: E
Source: GMAT Prep
