原帖由 prozzy 於 2007-5-18 23:05 發表。 
# F' {; C/ P2 K- r3 c. ntvboxnow.comthe answer is -$97 for sure.
" u# P/ u8 f6 F0 Z! M, Otvb now,tvbnow,bttvbThink about it this way
Q$ P# D+ |: ]; S7 D$ I# {- H, f0 v公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
' ~8 g) q$ \; b- d' f) p+ Ztvb now,tvbnow,bttvb2) Now, the owner discovered that the 100 bucks is fake. You can th ... 8 T' K- V9 B. E7 Ztvb now,tvbnow,bttvb4 ]1 c# q9 |: q3 X( p* \. O3 K
2 G% [$ u9 N9 H) q5 _! NTVBNOW 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。1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
+ R$ l0 z) R* O! W& wTVBNOW 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。 ( Z2 e- T/ h0 S" n; D Q. R2 {
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.& J$ M7 N- P: l% W, @
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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. |