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原帖由 prozzy 於 2007-5-18 23:05 發表。
' m" q9 r9 m( G  k9 B! O% etvb now,tvbnow,bttvbthe answer is -$97 for sure. 公仔箱論壇* k% {% p5 f! O* {
Think about it this way
2 x& W* b: x# u* F# L* U( B! \1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇  @4 X- Q/ R' E% m& g& q# L
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
3 K, h+ z6 m1 ~  Q6 w tvb now,tvbnow,bttvb* B( `8 e- z" g& ^  s6 D
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.tvb now,tvbnow,bttvb) {& R1 k; {* y* j4 J& }  r
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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 ??? www1.tvboxnow.com2 w  t: Y3 B8 O# H4 c% M- i
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" ^4 I4 @* K  JTVBNOW 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。dun 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+18tvb now,tvbnow,bttvb7 ~+ \! [3 ]8 u/ U2 K
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[ 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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