If you put one bacteria in the bottle which split into two bacteria in one minute, the bottle was filled with bacteria in 120 minutes.
How many minutes does it take for this bottle to be half by bacteria ?
How many minutes does it take for this bottle to be half by bacteria ?
Answer
It is just one minute before the time of full of the bottle.
119 minutes
Solution
It takes 119 minutes to be exactly half of the bottle because it increases twice in 1 minute.
It is just one minute before the time of full of the bottle.