SOLUTION: The germ population doubles in size every 6 minutes. After 2 hours the population is at 8,000. What time was it last at 4,000?

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Question 745779: The germ population doubles in size every 6 minutes. After 2 hours the population is at 8,000. What time was it last at 4,000?
Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
The population doubles every 6 minutes, so it was 4000 6 minutes prior to being 8000, or at 1 hr 54 min.