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10 votes
A bacteria is tripling every 10 days. If there is a 4 bacteria in a sample, how long with it take to reach 1 million bacteria?​

User Chiarra
by
3.4k points

1 Answer

7 votes

120 days is the correct answer!

4 (0 days)

12 (10 days)

36 (20 days)

108 (30 days)

324 (40 days)

972 (50 days)

2,916 (60 days)

8,748 (70 days)

26,244 (80 days)

78,732 (90 days)

236,196 (100 days)

708,588 (110 days)

2,125,764 (120 days)

Please let me know if I am wrong.

User Ilian Andreev
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3.9k points