stephanson12
New member
- Joined
- Dec 16, 2023
- Messages
- 16
Hello, is there anyone who can help me solve this question? All little tips are welcome. thank you!
At a party, there isn't a single boy who has danced with every girl, but every girl has
danced with at least 1 boy. Show that there are at least 2 couples Boy-Girl and Boy2-Girl2 who have danced, so that Boy does not dance with Girl2
and Boy2 did not dance with Girl.
At a party, there isn't a single boy who has danced with every girl, but every girl has
danced with at least 1 boy. Show that there are at least 2 couples Boy-Girl and Boy2-Girl2 who have danced, so that Boy does not dance with Girl2
and Boy2 did not dance with Girl.