Bottle full of germs
Algebra
Level
2
1 germ double it´s actual population every second, it can fill a bottle in a minute, how many seconds must pass to fill half of the bottle, starting with 2 germs?
The answer is 58.
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1 solution
to fill half of the bottle, it will take only one second less, since the germ doubles it´s actual population every second, and if you start with 2 germs instead of only one, you will save another second, since in one second, the lonely germ will become 2 germs