很玄喔

hata

三個人去投宿
服務生說要 300元  
每個人就各出了 100元  ，湊成 300元   
後來老闆說今天特價只要 250元
於是叫服務生把退的 50元   拿去還給他們
服務生想自己暗藏 20元 起來，於是就把剩下的 30元 還給他們
那三個人每人拿回 10元100－10＝90  　表示每個人只出了 90元   投宿 90元 X３人=270元 +服務生的20元＝290元　   
請問...那剩下的 10元   呢？？？？
     

ovaries

The 3 men paid $270, the waiter retained $20, the $250 went to the hotel.  Forget about the $300, it is not part of the calculation.

Brains

role

this is so ridiculous, how can u add up like that, each of them pay 90 = 270, twenty went to the waiter and 250 was with the hotel. To reform the equation it should be 10 x 3 = 30 + 20 + 250 and not 270 + 20 because 270 has already consist of that 20 this is a double entry.

ovaries

I am glad that my answer was validated by a professional accountant.

真田幸村

原帖由 role 於 2007-10-4 15:46 發表

                               
登錄/註冊後可看大圖

this is so ridiculous, how can u add up like that, each of them pay 90 = 270, twenty went to the waiter and 250 was with the hotel. To reform the equation it should be 10 x 3 = 30 + 20 + 250 and not 2 ...

嘩勁! 果然係讀 pure maths 嘅人!

shotgun

原帖由 role 於 2007-10-4 15:46 發表

                               
登錄/註冊後可看大圖

this is so ridiculous, how can u add up like that, each of them pay 90 = 270, twenty went to the waiter and 250 was with the hotel. To reform the equation it should be 10 x 3 = 30 + 20 + 250 and not 2 ...

智商高

laulau123

you guys so clever