Think!
Algebra
Level
1
In a lake, there is a patch of Lily Pads. Everyday, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take to cover half the lake?
The answer is 47.
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Every day it doubles itself.
so, if it is 2 1 today it will be full tomorrow.
so, it was half at the 47th day