Question 1145057
if you draw 4 marbles from a bag of 16 different colored marbles, how many combinations are there?
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Call the colors A, B, C, D … P
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The first pick is 1 of 16, then 1 of 15, 14 & 13
---> 43680 combinations.
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But, since ABCD is the same as BDAC, etc, there are 4*3*2*1 = 24 different ways to pick any combination.
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---> 43680/24 = 1820 combinations.