The population of a bacteria culture doubles every 2 minutes. Approximately how many minutes will it take for the population to grow from 1,000 to 300,000 bacteria  Answers.
A) 10	B) 12	C) 14	D) 16	E) 18
The question basically asks how many minutes it takes for a population to increase by factor 300 (300,000 / 1,000 = 300).   Now you know that every two minutes the population doubles, i.e. is multiplied by 2. So the equation becomes:   2^x &gt;= 300, where x represents the number of times the population doubles. A lot of people remember that 2^10 = 1,024. Hence, 2^8 = 256, i.e. the population has to double 8 times.   Since it takes the population 2 minutes to double once it takes 8*2= 
<gadget id="calculator">8*2</gadget>
<output>16</output>
16 minutes to double 8 times.   Thus, solution 16= 16 is correct.
<result>D</result>
The population of a bacteria culture doubles every 2 minutes. Approximately how many minutes will it take for the population to grow from 1,000 to 300,000 bacteria