Read the riddle and leave your answers in the comment section.
A firefighter stands on the middle rung of a ladder, spraying water on a burning building.
He climbs up 6 rungs before the heat of the flames causes him to come down 10 rungs.
After some minutes he is able to climb 18 rungs to the very top of the ladder.
How many rungs does the ladder have?
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29 rungs
31 rungs.
28 rungs.
30 rungs on fire fighter’s ladder, my guess