At What Time Will the Dish be Full of Bacteria

Read this logical reasoning riddle carefully and then answer the question.


A Glass dish hosts a healthy colony of bacteria.

Once a minute every bacterium divides into two.

The colony was founded by a single cell at noon.

At exactly 12:43 (43 minutes later) the Petri dish was half full.

At what time will the dish be full?


So were you able to solve the riddle? Leave your answers in the comment section below.

You can check if your answer is correct by clicking on show answer below. If you get the right answer, please do share the riddle with your friends and family on WhatsApp, Facebook and other social networking sites.

Leave a Comment