Answer:
1,296
Explanation:
On day 0 we have 48 bacteria microorganisms.
Then on day 4, we have 48x 3 = 144 bacteria microorganisms.
On day 8 we have 144 x 3 = 432 bacteria microorganisms.
And finally On day 12, there are 432 x 3 = 1,296 bacteria microorganisms.
Thee colony tripled 3 times in 12 days, which is :
12 / 4 = 3 times.
Hence on day 12 our colony size was:
48x 3 x 3 x 3
=48(3^³)
= 48 x 27 = 1,296
Therefore On day 12, there are 1,296 bacteria microorganisms