How many different ways are there to choose 2 of 4 different colors?
Stacey Warren - Expert brainly.com
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If you could explain as well, that would be great! :D
For your first pick, you can pick any of 4 colors, so that is going to be "4 times something" so far.
That leaves 3 colors of which you can pick any of the three. So, you have "4 times 3" so far.
Now, you in effect have "double-counted" because the order doesn't matter. So, you have "4 times 3 divided by 2" for your answer.
This is 4C2 which is 4!/(2! times 2!)