原帖由 prozzy 於 2007-5-18 23:05 發表。 - G! [- K4 C ]
the answer is -$97 for sure. 公仔箱論壇" z( w5 w7 F! p: {- T
Think about it this way tvb now,tvbnow,bttvb) T; Y. k5 w) ~4 T2 n
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。5 A/ V# k" n: N# [' n( o- B( o+ W }9 l
2) Now, the owner discovered that the 100 bucks is fake. You can th ... $ z' G* n+ J; {
: {3 P$ z2 G* S, z5 }www3.tvboxnow.com & N) p! X# V. a* U' P; U/ _% \0 X0 I# E
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb7 a6 L( T& ?7 L, e/ X
9 x& h: B& X# x/ nthink 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.公仔箱論壇4 B/ F5 S0 Z. L) B1 P
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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. |