Posted by Anonymous on .
A colony of bacteria is made up of (5) cells. Asuuming that no cells die and that every cell divides, how many cells will there be in the colony after four divisions?
a 20
b 80
c 160
d 625
I'm thinking its b.

SCIENCE 
DrBob222,
I think 1 cell divided 5 times is
2^{5} = ??
Then 5 times that for 5 cells. 
SCIENCE 
Numb3rs,
^ no, in the exercise it's 4 divisions so it must be 2^4
then multiple to 5 
SCIENCE 
Mya,
So every time you divide the number before is multiplied by two. So you multiply by two for every example.
5*2*2*2*2
Which would become
5*2^4
=80