原帖由 prozzy 於 2007-5-18 23:05 發表。  5.39.217.76- J, F, l) L3 u* A; h' d/ v
the answer is -$97 for sure.
0 O6 v# Q" t2 N: G7 p2 B$ eTVBNOW 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。Think about it this way
d, d3 y1 u5 r3 @' l% Z+ w0 |9 A5.39.217.761) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
- J& K+ D' V- m4 z7 r! o; d5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...
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% g6 c6 d/ r8 P% M: ^; n1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong5.39.217.769 d$ V" j3 s* U: W, K( D' l* o
" n V* j) k; {( Z0 L; Q5.39.217.76think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
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! O/ Q% b$ z2 A5 R) `2 T$ {公仔箱論壇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
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發表於 2007-7-11 03:19 PM
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