Lemma
MediumPermutations & combinations
AQuA-RAT train #11552 · Combinatorics · Permutations & combinations

A sock drawer contains 6 socks, each one a different solid color

A sock drawer contains 6 socks, each one a different solid color. The colors of the socks are red, orange, yellow, green, indigo, and violet. If a person reaches into the drawer and pulls out two socks, how many different color combinations are possible in the selected pair of socks?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #11552

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