Number of Ways to Select 3 Men & 3 Women from 5 Married Couples

  • Context: MHB 
  • Thread starter Thread starter Punch
  • Start date Start date
  • Tags Tags
    Permutation
Click For Summary
SUMMARY

The problem involves selecting 3 men and 3 women from 5 married couples while ensuring that exactly 2 of the selected couples are married to each other. The solution begins by selecting 2 couples from the 5 available, which can be done in 10 ways. Next, one man is chosen from the remaining 3 men, and one woman is selected from the 2 women who are not his spouse. This results in a total of 60 valid combinations for the selection process.

PREREQUISITES
  • Combinatorial mathematics
  • Understanding of permutations and combinations
  • Basic knowledge of set theory
  • Familiarity with the concept of married couples in combinatorial problems
NEXT STEPS
  • Study the principles of combinatorial selection in depth
  • Learn about permutations and combinations with restrictions
  • Explore advanced problems involving set theory and relationships
  • Practice similar problems involving selections from groups with constraints
USEFUL FOR

Mathematicians, educators, students studying combinatorial mathematics, and anyone interested in solving complex selection problems involving relationships.

Punch
Messages
44
Reaction score
0
Find the number of ways of selecting 3 men and 3 women from 5 married couples such that there are exactly 2 married couples.

I need the reasoning
 
Physics news on Phys.org
First you select two couples out of five. Then you select one man out of the remaining three and one of the two women who are not his spouse.
 
Punch said:
Find the number of ways of selecting 3 men and 3 women from 5 married couples such that there are exactly 2 married couples.
I need the reasoning
Choose three wives. From their husbands choose two. Then choose one of the other men not married to any of the three chosen wives.
 

Similar threads

  • · Replies 12 ·
Replies
12
Views
4K
  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 5 ·
Replies
5
Views
5K
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 9 ·
Replies
9
Views
3K
Replies
2
Views
7K
  • · Replies 1 ·
Replies
1
Views
1K