16/21 is the correct answer
It doubles every 4 hours, so after 24 hours there will be 6 doublings.
2^6 = 64
So, the population will be (3,000,000 * 64) or 192,000,000 in 24 hours.
The answer is B.
Answer:
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Answer:
10178.76
Step-by-step explanation:
use formula:-2πrh+2πr^2
