A Petri dish hosts a healthy colony of bacteria

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A Petri dish hosts a healthy colony of bacteria.
Once a minute every bacterium divides into two.
The colony was founded by a single cell at noon.
At exactly 12:43 (43 minutes later) the Petri dish was half full.
At what time will the dish be full?

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@ 12.44
The Petri dish will be full in 1 minute after 12.43 as the half full bacteria in the dish will double in a minute.