← Thinking in Rates · Lesson 1 of 4
One number over another
A rate is one quantity divided by another. Pace is time over distance: 30 minutes for 5 kilometres is 6 minutes per kilometre.
Speed is the same pair the other way up, distance over time. Neither is better; they answer different questions. Pace tells a runner how a lap should feel; speed tells a driver how far an hour goes.
You walk 8 kilometres in 40 minutes. What is your pace?
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