Question 1199062
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As the problem is posed, its meaning is dark,


because the growth rate of 4% per day gives/keeps the population of 2 bacteria unchangeable in every next day, 
since the number of bacteria can only be integer.


From the other side, the problem says that the growth rate is 4%, not zero.


The problem is badly posed in statistical sense, since the announced growth rate 
relation / (formula) does not work for so small initial number of bacteria.



            As the problem is posed,  it is self-contradictory and,  therefore,  is &nbspDEFECTIVE.



            Alternatively, it can be a kind of an entertainment puzzles

            that are not  Math problems,  but are a kind of traps,  instead.