The initial size of the cultured bacteria was around 2000 after an hour the bacteria count turned to 16000 with the value of n = 8000.
Given:
n = 1000 e^ (kt)
note when t = 0,
e^kt = e^0 = 1
1000*1 ar t = 0
Stepwise solution,
4000/1000 = 4 = e^(k*1)
or
e^k = 4
k = In 4 = 1.386
when n = 1000,
n = 1000 e^(!.386 t)
t = 1.5
n = 1000 e^(2.079)
n = 8000
Hence, the correct answer is (n=4000)
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