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Sari packs 2 mugs into a gift box she has 4 colors of mugs to choose from red white green blue how many combinations of two different color mugs can she pack into the box

Sari packs 2 mugs into a gift box she has 4 colors of mugs to choose from red white green blue how many combinations of two different color mugs can she pack in class=

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10 different combinations
mjankiewicz
Combinations (Two we choose from four)
[tex]C_4^2={4\choose 2}=\frac{4!}{2!*2!}=\frac{2!\cdot 3\cdot \not4^2}{2!\cdot \not2^1}=3\cdot 2=6[/tex] 

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