Question

A culture of bacterial triples in size every four hours. If the bacteria population is estimated to be three million now, what will it be one day from now?

A. 4,238,000,000
B. 6,561,000,000
C. 243,000,000
D. 2,187,000,000

Answer 1

1 day = 24 hours

we cam divide in 6 periods of 4 hours

if bacteria triples in size every four hours

3 millions at begining

3^7 = 2'187'000'000 bacteria

Espero que te sirva

Answer 2

Answer: Geometric progression

Explanation:

0h -> 3x10^6 /4h-> 9x10^6 / 8h-27x10^6 / 12h->81x10^6 / 16h->243x10^6 / 20h-> 729x10^6 / 24h->2187x10^6 = 2.187.000.000.: