原帖由 prozzy 於 2007-5-18 23:05 發表。 
+ Z' Q. D% F7 S/ DTVBNOW 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。the answer is -$97 for sure.
" ~+ k# ~) P& p( {7 Z% T1 u; YThink about it this way TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。* A$ T; D7 O; ^; n, h/ a
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb; K C# p" N( z$ d$ Y+ X1 I
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 9 a" H0 `. e$ W' E2 G0 r
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。( D% S9 O% N7 [( G; [$ Z" _
; z k4 e, Y+ O# x& [os.tvboxnow.com1) 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.- G) ^- ^% K9 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. |