To find the number of times the bacteria in petri dish A than petri dish B, let us divide.
So, number of times = [tex]\frac{Number of times bacteria in petri dish A}{Number of times bacteria in petri dish B}[/tex]
[tex]= \frac{1.08(10^{15} )}{2.7(10^{11} )}[/tex]
= 0.4 × [tex]10^{4}[/tex]
= 4000
Hence, the number of bacteria in petri dish A is 4000 times the number of bacteria in petri dish B.
