Question

The doubling time of a population of flies is 5 hours. By what factor does the population increase in ​29 hours? By what factor does the population increase in ​3 weeks?

Answer 1

If it doubles every 8 hours then

population = initial population * 2 ^ (hours / 8)

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after 26 hours

population increases by a factor of

2 ^ (26 / 8) = 9.51365692

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after 1 week, or 168 hours

population increases by a factor of

2 ^ (168 / 8) = 2 ^ 21 = 2,097,152