If mixed doubles tennis matches are to be arranged between 7 couples and if no husband and wife want to be in the pair how many ways can you set up the teams?
If mixed doubles tennis matches are to be arranged between 7 couples and if no husband and wife want to be in the pair how many ways can you set up the teams?
Raghu - how is it that you never share your work/thought?
We do not know where to begin to help you.
Hint - Each husband can be teamed up with how many wives?
Please share your work with us, indicating exactly where you wre stuck - so that we may know where to begin to help you.
Subhotosh, This is my thought. 2 out of 7 men can be permuted in 7p2 ways and 5p2 for women. Once you choose 2 men and 2women, you can have 4 teams. Therefore 4 * 7p2*5P2. This is my thinking.
Interactive Math Goodies Software
PERMUTATIONS AND COMBINATIONS - HELP PLEASE
Posted - 10/10/2010 : 10:14:45
