17.2.13

Brainteaser of the Week

Rope Ladder

The rope ladder of a boat hangs over the side of the boat and just reaches the water. Its rungs are 20cm apart.
How many rungs will be under the water when the tide rises 1.2 metres?
Answer
When the tide rises 1.2 metres, the boat and its ladder will also rise. So no rungs will be under the water.
Well Done to everyone who answered correctly.  See me for a smiley face.




 




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