原帖由 prozzy 於 2007-5-18 23:05 發表。  ; M( s5 u; u0 t7 o
the answer is -$97 for sure.
1 H: R& i& T& \ u0 uThink about it this way 公仔箱論壇) K8 g- o9 f- |
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)$ ~( I, y O4 W; @# g F
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
; `2 E' a& L. ~) X; `tvb now,tvbnow,bttvb TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。9 ]7 G9 B& l4 b I1 h
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong; T( P2 e, J# [2 M! s O
3 B- a' S) ^1 A- \. \* N) ~9 H- Hos.tvboxnow.comthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
7 j4 V# f% R! g' `公仔箱論壇 TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。+ y* [& X3 _1 i! ^0 `
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |
發表於 2007-7-10 05:18 PM
| 
發表於 2007-7-11 03:19 PM
| 
