原帖由 prozzy 於 2007-5-18 23:05 發表。 
: R6 n# {$ D6 m3 @tvb now,tvbnow,bttvbthe answer is -$97 for sure. 公仔箱論壇& y0 M- w, Q7 |1 s
Think about it this way 公仔箱論壇+ X1 Y1 r. h' H0 X
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)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。3 K. l* q/ s7 R) Y% V" S
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 公仔箱論壇; F) E9 k% z* D4 ^; Q1 A
' p3 t! r: x/ [+ ?+ [5.39.217.76 公仔箱論壇5 M6 J: x- r1 w3 R3 ?& G5 p
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3 K5 [- u# A) \) P+ A- x3 Y
- t' b/ U5 \- d2 e0 Mtvb now,tvbnow,bttvbthink 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.
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I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |