A bacterial population doubles every hour. If there are 1000 bacteria now, when were 125 bacteria present?
Options:
A. | 1 hour ago | |
B. | 2 hours ago | |
C. | 3 hours ago | |
D. | 5 hours ago |
Answer: Option C
: C
If there are 1000 bacteria now, 1 hour agothere would have been 500 since the number of bacteria doubles every hour. 2 hours ago there would have been half of 500 bacteria, that is 250 bacteria. 3 hours ago there would have been 125 bacteria.
: C
If there are 1000 bacteria now, 1 hour agothere would have been 500 since the number of bacteria doubles every hour. 2 hours ago there would have been half of 500 bacteria, that is 250 bacteria. 3 hours ago there would have been 125 bacteria.
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