SOLUTION: A culture of bacteria doubles every 3 hours. If there are 500 bacteria at the beginning, how many bacteria will there be after 24 hours?

Question 1165078: A culture of bacteria doubles every 3 hours. If there are 500 bacteria at the beginning, how many bacteria will there be after 24 hours?
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52756) (Show Source): You can put this solution on YOUR website!
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There are 8 doubling periods in all, counting with the very first. So the answer is 500 bacteria multiplied by = = 256-1 = 255. ANSWER. 500*255 = 127500 bacteria.

Answer by josgarithmetic(39614) (Show Source): You can put this solution on YOUR website!
Twenty-four hours contains eight of these doubling periods. Use that!
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