9 boys and 6 girls are going to prom together. How many different ways are there to arrange them into six boy-girl couples? (Assume the remaining three boys don't mind going stag.)
9 boys and 6 girls are going to prom together. How many different ways are there to arrange them into six boy-girl couples? (Assume the remaining three boys don't mind going stag.)
Thanks
Pairing 6 boys with three girls is represented by the following Combinations with the format nCr:
15C6 x 15C6 = 3003^2 = 9,018,009 ways to arrange six boy-girl couples.