A bakery worker who fails to wash his hands thoroughly and fails to wear gloves inoculates a pie with 4 E. Coli cells when he uses his finger to test whether it is done. By the time you purchase the pie, there are 256 E. Coli cells in it.
a) How many generations did the cells go through?
b) How long does it take (assume the generation time for E. Coli is 30 minutes)?
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