4 girls bought 8 pullovers (every girl bought 2 pullovers). In How many ways they could buy the pullovers?

The way I interpret your problem is that you have 8 different pullovers and you need to distribute them to 4 different girls so that every girl gets two pullovers. If that is the case, would the following then be correct?

The first girl would have \(\displaystyle \left({8\atop 2}\right)\) ways to have the pullovers distributed to her. The second girl would have \(\displaystyle \left({6\atop 2}\right)\) ways to have the pullovers distributed to her. The third girl would have \(\displaystyle \left({4\atop 2}\right)\) ways and the last girls would have \(\displaystyle \left({2\atop 2}\right)\). This would be 28+15+6+1.

Experts please let me know if this is correct.