At a business meeting each person shook hands with every other person exactly on

游客2023-10-17  24

问题 At a business meeting each person shook hands with every other person exactly once.If there were fifteen handshakes, how many people attended the meeting?

选项

答案 Six/6

解析
转载请注明原文地址:https://tihaiku.com/zcyy/3104539.html
最新回复(0)