原帖由 prozzy 於 2007-5-18 23:05 發表。 
- R1 f; X# M/ [- J0 k+ {5 d/ i' [+ E8 Ftvb now,tvbnow,bttvbthe answer is -$97 for sure.
8 M/ u: w1 e' t7 etvb now,tvbnow,bttvbThink about it this way
% e) a6 a' h$ W+ w公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
* s5 [5 i9 N7 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。2) Now, the owner discovered that the 100 bucks is fake. You can th ... $ {$ d! R% w/ @3 L% K
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。% q# F3 H6 ~& Z% p: `+ `
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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
6 U! B0 G B; I' A) [tvb now,tvbnow,bttvb
' I3 W/ v. c7 lwww2.tvboxnow.comthink 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.
1 }! q% h) o! V. B) {/ 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。 www2.tvboxnow.com: S& |/ t5 j2 r. \6 \
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |