I know there's a way of figuring this out mathematically -- but I don't know it.
However, if you labeled each pair with a letter from A to G, you could figure it this way.
AB, AC, AD, AE, AF, AG
BC, BD, BE, BF, BG
CD, CE, CF, CG
DE, DF, DG
EF, EG
FG
That looks like 21 ways.
I have 7 different pairs of jeans and want to take 2 with me on vacation. how many different ways can you pick 2 pairs of jeans to take on vacation.
sorry for not proofing before
1 answer
1 answer