SOLUTION: Hi An amoeba population triples every 10 minutes. If A Petri dish is completely filled after 7 hours. How long did it take for the Petri dish to be a third filled. Thanks

Question 1185282: Hi
An amoeba population triples every 10 minutes. If A Petri dish is completely filled after 7 hours. How long did it take for the Petri dish to be a third filled.
Thanks
Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
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An amoeba population triples every 10 minutes. If A Petri dish is completely filled after 7 hours.
How long did it take for the Petri dish to be a third filled.
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It is a joke problem, because the answer becomes OBVIOUS if to think a minute.


It takes 10 minutes less than 7 hours for the Petri dish to be a third filled.


ANSWER.  It takes 6 hours and 50 minutes.

Solved and explained.

E N J O Y ( ! )

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