A bacterial cell divides once every minute and it takes 1 hour to fill a cup. How much time will it take to fill half the cup?
A bacterial cell divides once every minute and it takes 1 hour to fill a cup. How much time will it take to fill half the cup?
(a) 30 minutes
(b) 60 minutes
(c) 29 minutes
(d) 59 minutes
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The correct option is: (d) 59 minutes
Explanation:
In this case each bacterial cell divides every minute it means doubles its number. Therefore, in 59th minute, the cup must be half filled because it will completely filled after 1 hour.
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