Grades 3-4 Video Solutions 2023-2023_3-4

Video Transcription

Video Summary

Anna wants to build a tower using three out of her four disks, with each disk smaller than the one below it. Starting with the largest disk, the yellow one, there are three possible combinations using the three smallest disks on top in different sequences. Starting with the second-largest disk, there is only one combination possible due to only having two smaller disks left. The smallest disk cannot be at the bottom as it requires two smaller disks above, which do not exist. Thus, there are four different towers Anna can make, which corresponds to option C.

Keywords

tower building

disk arrangement

combination possibilities

disk sizes

tower options