Hey, to be honest, this is my first time asking for help on such forums, my task sounds like this: What is the methodology for finding how many small spheres (radius r) can fit in a large sphere (radius R), I have been thinking about this for a long time, but I just can’t come to a satisfactory result, all I have now is that if R = 3r, then a maximum of 12 balls can fit in such a sphere (looking ahead - no, the option is to divide the volume of a large sphere by the volume of a small one and round up by the smaller side does not correct). I will be glad to receive any suggestions and even links to literature that can provide some sort of clue. Thank you.