Question

A cell which divides every minute can fill a 1 L beaker in 2 hours. How much time will it take to fill 500 mL beaker?

• A. 60 minutes
• B. 59 minutes
• C. 100 minutes
• D. 119 minutes

Answer 1

The correct option is D 119 minutes

Each cell will keep on dividing. It is given that each cell will divide in one minute. Thus, if the beaker is completely filled in 120 minute, that means at 119 minute it was exactly half filled and then in the next minute, all the cells which were present in the half filled beaker divided and completely filled the beaker in 120 minutes.
So, the correct answer is 119 minutes.