有3个人去投宿,一晚30元，三个人每人掏了10元凑够30元交给了老板， 后来老板说今天优惠只要25元就够了,拿出5元命令
2008-12-10 4:43 am
有3个人去投宿,一晚30元，三个人每人掏了10元凑够30元交给了老板， 后来老板说今天优惠只要25元就够了,拿出5元命令服务生退还给他们, 服务生偷偷藏起了2元, 然后,把剩下的3元钱分给了那三个人,每人分到1元，这样,一开始每人掏了10元,现在又退回1元,也就是10-1=9,每人只花了9元钱, 3个人每人9元,3 X 9 = 27 元 + 服务生藏起的2元=29元，还有一元钱去了哪里？？？此题在新西兰面试的时候曾引起巨大反响,那一元去哪里了你知道?
回答 (2)
2008-12-19 5:19 am
✔ 最佳答案
每人出了9元，3個人加起來就有：9*3=27元而老闆說只收25元就夠了
剩下那2元則被服務生拿走了
換個角度說，他們給了老闆30元，老闆只收了25元，退回了3元給他們，25+3=28元，剩下的2元服務生拿走了，加起來不就是30元嗎?
總結是老闆收了25玩，而不是30元，不要被誤導了!
2008-12-18 21:22:09 補充：
是元，不是玩，打錯了不好意思=p
參考: 我, don't copy my answer
2008-12-19 5:09 am
The three men paid $27 (cash outflow) in total, of which $25 went to the boss (cash inflow) and $2 went to the staff (cash inflow).
The tricky point is to add $2 to $27. From another point of view, we can say there were $30 in total at the beginning. At the end, this $30 was distributed among the three men $3, the boss $25 and the staff $2. $3+$25+$2=$30.
The tricky point is to add $2 to $27. From another point of view, we can say there were $30 in total at the beginning. At the end, this $30 was distributed among the three men $3, the boss $25 and the staff $2. $3+$25+$2=$30.
收錄日期: 2021-04-13 16:18:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081209000051KK01469