Question

If the number of bacteria in a colony doubles every 105 minutes and there is currently a population of 45 bacteria,what will be the population by 315 minutes from now?

Answer 1

360

Explanation:

1st minute => 45 bacteria

105th minute => 45 x 2 = 90 bacteria

210th minute => 90 x 2 = 180 bacteria

315th minute => 180 x 2 = 360 bacteria

Answer 2

180

Hope this helps :)