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原帖由 prozzy 於 2007-5-18 23:05 發表。 9 P  f$ s8 F' i- ?: z) E% \
the answer is -$97 for sure. TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。$ B9 W5 y. B* l( o
Think about it this way 公仔箱論壇4 k7 U! l4 r3 i" G. Q. K& K3 n
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb" G+ q2 o5 {( e0 \/ x" m
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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$ T* j$ Z( y* V  i: utvb now,tvbnow,bttvb1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong公仔箱論壇1 [3 b8 U; Z! q4 I$ t7 w

! F( B* ~4 m7 D& B4 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, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.tvb now,tvbnow,bttvb, Q+ D; j7 j, p$ h3 p! Z2 E

. D8 ^9 v7 Q! C& _; g9 q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.
??? 369258 ? 2007-6-28 23:29 ???
. t7 Z9 R9 G' L5 y# 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。
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2 o' b6 h2 D" }0 V5.39.217.77:8898dun 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
" A0 W# T- ]1 x4 }$ |/ YTVBNOW 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。公仔箱論壇  w- y) j& C9 Q7 {
[ 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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