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A single one celled organism divides into two identical cells every 30 minutes. If 6 of these organisms are present in a sample now, how many will be present after 60 minutes(assuming none of them die)?

User Elsherbini
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We start with 6 organisms, whose population doubles every 30 minutes.
After 30 minutes we will have 12 and after 60 minutes we will have 24.