Ship with ladder and tide puzzle
A ship sailing on the sea
has a ladder reaching down in such a way that
the bottom rung is just above the surface of the water.
The rungs are each 1 foot apart.
When the tide come in,
the water level increases
at the rate of 1 foot every hour and
continues this way for 4 hours.
How many rungs of the ladder would be under water when the tide stops rising.
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Answer:This is a trick puzzle.
0 rungs will be under water,
as the ship would rise with the tide,
and hence the bottom rung will still be above the surface of the water.