Asked by Kim

Hermes can travel 2 mi up Mt Olympus at a rate that is 18 mi/hr slower than he rides Pegasus down the same distance. The entire trip takes 14 min. How fast can he go up? How fast can he ride down?

Answers

Answered by drwls
Let V be his speed going up so V+18 will be his speed going down, in miles/hr.

The time required is

14/60 hr = 0.2333 hr = 2/V + 2/(V+18)

Solve for V
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