原帖由 prozzy 於 2007-5-18 23:05 發表。 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。- b& c! S* J' g
the answer is -$97 for sure. tvb now,tvbnow,bttvb7 a) z$ a, n$ n) K
Think about it this way 5 Q- t; T) t6 _& O6 _
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇% K/ J3 {" _2 c6 @
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 5.39.217.77:88987 c7 m! x* u# G- u. [, Y; o+ k
i' Q$ @* I7 L 5.39.217.77:8898! Q2 \- f) e3 R1 A8 d3 \
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong公仔箱論壇7 v; z0 Y" A K" m r
* S# d4 O7 M* t7 J7 x9 L; Bthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.tvb now,tvbnow,bttvb; _$ s, o2 k; j8 f# U
+ o* {/ t+ |- Q" {tvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |