A water lily doubles its surface
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- Name : A water lily doubles its surface
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A water lily doubles its size everyday. Thirty days later, it covers up the whole pond it is on.
How many days did it take for it to cover the quarter of this pond's surface ?
Discover the solution of this riddle
If the water lily doubles its size everyday and covers the whole pond in thirty days, it was covering half of it after... twenty nine days ! So a quarter of the pond was covered at the twenty eighth day.
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A water lily doubles its surface