Here is another of the questions Wertheimer sent to Einstein.
The answer is deceptively simple. hint..if you are doing a bunch of calculations you are going about it in the wrong way.
4.Amoeba Propagation An amoeba propagates by simple division; each split takes
3 minutes to complete. When such an amoeba is put into a glass container with a nutrient
fluid, the container is full of amoebas in one hour. How long would it take for the container
to be filled if we start with not one amoeba, but two?
57 minutes