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The Frog Race

Two frogs have a race. One frog makes a jump of 80 cm once every 5 seconds. The other frog makes a jump of 15 cm every 1 second. The rules of the race state that the frogs must cross a line 5 meters away and then return to the starting point. Which frog wins the race?

(Source: Mathematics Teaching in the Middle School, Nov-Dec1994).

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