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A runner completes a 15.0 km run at a speed of 10 km per hour. How long did the runner take to complete the race?
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A runner completes a 15.0 km run at a speed of 10 km per hour. How long did the runner take to complete the race?

User Oscar Foley
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1 1/2 hours divide 15.0 km by 10 km/hr. Km cancels out and leaves hrs.
User Bob Ensink
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