Under ideal conditions a certain bacteria population is known to double every three hours. Suppose that there are initially 45 bacteria. What is the size of the population after 15 hours?
A) 2880 bacteria
B) 180 bacteria
C) 1440 bacteria
D) 360 bacteria
E) 720 bacteria

Question

Quizplus · Accepted Answer

Since the bacteria population is known to double every three hours, after 15 hours (which is a multiple of 3 hours) the population would double 5 times. Therefore, the population size after 15 hours would be:
45 * 2^5 = 1440 bacteria

Under Ideal Conditions a Certain Bacteria Population Is Known to Double