Correct Answer: 102400
Explanation:
The number of bacteria at any given time forms a GP whose terms are given by 50, 100, 200, ... where
a = 50, r = 100/50 = 2
Tn = arn -1
⇒ T12 = 50(2)12 - 1
= 50 x (2)11
= 102400
So, the number of bacteria born in 12th hour is 102400.
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