If 10 bacteria landed on a bowl of soup and reproduce after every 30 minutes how many would be present there after 5 hours

10,240 bacteria

Explanation:

Using the formula:

    Number of bacteria = 2^n

Where n = number of times the bacteria can divide within the time available. In this case, the bacteria can divide once every 3o minutes, meaning that it can divide 2 times in one hour and 10 times in 5 hours. Hence, n = 10.

There were 10 bacteria to start with, hence, the formula becomes:

Number of bacteria at the end of 5 hours = 10 x 2^10

     = 10 x 1024

        = 10240 bacteria

There would be 10,240 bacteria after 5 hours.

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