Magic pond
Level
pending
There is a lotus pond in which the number of lotuses doubles each day. If it takes 30 days to completely fill the pond with lotuses; find the number of days required to fill half the pond.
The answer is 29.
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1 solution
If it takes 29 days to fill half the pond; 30 days would be required to completely fill it.
The answer is not 15 as you might think in a hurry