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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。# w+ U: y9 l( ]
the answer is -$97 for sure. 3 i* X2 c* `8 t/ w" r5 X1 W
Think about it this way " y) h* T/ z4 _0 [( z
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb4 ]- A! r5 Q: C
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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。* @2 `5 T  n  y9 M2 m+ @1 x
tvb now,tvbnow,bttvb- H) T7 Y5 B/ h; M! B5 Y4 E, |) k- Q

4 M5 p+ o) h/ n# z* Ktvb now,tvbnow,bttvb1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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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.
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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.
??? 369258 ? 2007-6-28 23:29 ??? 5.39.217.760 Y' N; N9 N* D6 h( z1 F8 m' I
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8 E0 [9 H2 c: N3 V- P  ?) z5.39.217.76dun forget that guy, not only the $18 dollars product he got on hand, he also got $79 dollars on this hand, he paid a fake 100 dollars bill, it means he paid nothing, and the boss gets nothing too, so u need to add 79 dollars to the total.

回復第 1 帖由 idontgiveashit 所發的帖子

97
179+18
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$ V3 j% \1 T. j" |5 w5.39.217.76[ 本帖最後由 joey80 於 2007-7-11 07:08 AM 編輯 ]
118

$97 lost

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回復第 213 帖由 skybirds 所發的帖子

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??
18+79=97
not 97 ma ?
197
Thanks for sharing!!!
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