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you own 12 pairs of shoes are are taking 2 of them on vacation. in how many ways can you choose 2 pairs from the 12?

User Wwyt
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1 Answer

5 votes

Answer:

132

Step-by-step explanation:

If this question is a permutation, the correct answer is 132. Permutations and combinations require two parameters; they show the number of possibilities a sample can be taken from a number of objects/numbers. In combinations, order doesn't matter; but, in permutations, order matters.

The formula for permutations is n! ÷ (n - r)! … Plugging 'n' (objects) and 'r' (sample) in, you get 12! ÷ (12 - 2)! …

Calculate:

12! ÷ (12 - 2)!

12! ÷ (10)!

12 * 11

132

User Sauda
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