原帖由 prozzy 於 2007-5-18 23:05 發表。 
" W+ q* j7 Q! ^9 {5.39.217.77:8898the answer is -$97 for sure.
+ }3 c* c* U1 _! e ?6 fTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。Think about it this way
3 D/ e3 }; }1 u! L: W+ [$ Q2 `tvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。, J9 Q, A! Z. M! o
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 7 D/ Y! A! Q4 L7 \+ K
公仔箱論壇; V( J8 o3 K& w2 Y/ ?
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
v. b6 T0 q' e2 y& d, Ztvb now,tvbnow,bttvb tvb now,tvbnow,bttvb* L2 L2 }0 i$ q4 W% m: o8 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.
$ J9 Y+ G$ W J9 } 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。# V9 P; M" ^9 {6 I- A$ x/ {
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |