Search
Handshakes
- urital12
- Aug 22, 2016
- 1 min read
5 friends met for lunch. Each shaked hands with the others one time. How many total handshakes were there?

Recent Posts
See AllIdo Elad and Yoav are brothers The sum of the ages of Ido and Elad is 20. The sum of the ages of Elad and Yoav is 15. The sum of the ages...