At a gathering of 15 people, there are 10 people who all know each other and 5 people who know no one. People who do not know each other shake hands. How many handshakes occur?

asked by guest
on Nov 26, 2024 at 4:44 am



Mathbot Says...

I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.