8 members, how many pairs can be formed?

[Guest]

The science club members are to work in pairs on an experiement.

If there are eight members present, in how many ways can the pairs be formed?

I thought it was like 8C2, since there is a pool of 8 members, and 2 need to be picked to be a pair..but the answer is soo big, it's 2520. I dont get it!

 

[mark07]

I thought it was like 8C2, ...

I agree with you there. Maybe the answer is a typo. Is that the complete statement of the problem?

 

[Denis]

8C2 * 6C2 * 4C2 * 2C2 = 2520

4 pairs are formed, not 1.