SOLUTION: EColi culture doubles every 40 minutes. If 30 EColi are present initially, what will the number of EColi be after 3 hours?

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Question 1187524: EColi culture doubles every 40 minutes. If 30 EColi are present initially, what will the number of EColi be after 3 hours?
Answer by ikleyn(52793)   (Show Source): You can put this solution on YOUR website!
.

3 hours = 180 minutes = 4.5  40-minutes doubling periods.


So, after 3 hours, the number of EColi will be


     = 678.82 = 679  (rounded).    ANSWER

Solved.

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