|Here's another one:
This means that you have three groups of 5!
Put the three groups together... How many pentagons do you have?
Count them... Wow, that's a lot! I see 15!
So, our answer is:
Let's switch the numbers around and do it the different way!
This means that you have five groups of 3!
Put the five groups together... How many purple circles do you have?
Count them... Yep, we get 15 again! Cool!