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T O P I C    R E V I E W
raghu Posted - 10/10/2010 : 10:14:45
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?
2   L A T E S T    R E P L I E S    (Newest First)
raghu Posted - 10/11/2010 : 21:30:09

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.
Subhotosh Khan Posted - 10/11/2010 : 19:56:45
quote:
Originally posted by raghu

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.



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