The Boat at High Tide

A boat has a ladder that has six rungs. Each rung is one foot apart. The bottom rung is one foot from the water. The tide rises at 12 inches every 15 minutes. High tide peaks in one hour.

When the tide is at its highest, how many rungs are under water?

None. The boat is floating on the water, so as the tide rises, so does the ladder.

Posted in Brain Teasers


3 Comments on "The Boat at High Tide"

Bonnie says
January 27, 2016 @ 13:32

This wouldn’t be a brainteaser if the answer was simple math…
(checks answer)
Called it!

Sherry says
July 3, 2016 @ 21:41

None….boat floats and rises with the tide

Ben says
September 15, 2016 @ 10:55

My father told me this one time a while ago, and it took me 2 hours to figure it out and multiple sheets of paper for math work.

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