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-Dec 1994)

Extension:
Is there a race length the other frog would win?