Permutations and combinations

Question

How can you tell if a word problem is permutation or combination?

Answer 1

In a permutation, order makes a difference, e.g., ABC is different from BCA

In a combination, order does not make difference, e.g., ABC is the same as BCA.

 

Permutation: you select three people from a group of ten to be President, Vice-President, and Secretary.

Combination: you select three people from a group of ten to be on a committee.