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Problem 8: A car travels 25 miles at 25 mph, 25 miles at 50 mph, and 25 miles at 75 mph. Find the arithmetic mean

Problem 8: A car travels 25 miles at 25 mph, 25 miles at 50 mph, and 25 miles at 75 mph. Find the arithmetic mean and the harmonic mean of the three velocities. Which is correct

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