Answer:
320 000
Explanation:
The generation time G is the time it takes a bacterial population to double.
If N₀ is the number of bacteria at the beginning of the experiment and N is the number at any time t,
N = Nₒ × 2ⁿ
where n is the number of generations
n = t/G
Data:
N₀ = 5000
G = 30 min
t = 3 h
Calculations:
t = 3 h = 180 min
n = 180 min/30 min = 6
N = 5000 × 2⁶ = 5000 × 64 = 320 000
There will be 320 000 bacteria in the sample.