原帖由 prozzy 於 2007-5-18 23:05 發表。 
+ \% z" m4 K. g* N公仔箱論壇the answer is -$97 for sure.
! B8 e0 s( _. F/ N( J2 z. d2 bThink about it this way 5.39.217.766 ^* @, X6 f8 p, {/ _
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
% {) ^( n) Q7 v1 m3 R7 b2) Now, the owner discovered that the 100 bucks is fake. You can th ... ) L; J* @ l0 [- Q$ t公仔箱論壇1 K9 S! Q1 G' w$ ^3 t o
! K$ G) b* W+ @( A1 k1 e$ hTVBNOW 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。1) 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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$ r+ r! d+ @# V2 X3 uthink 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: S& C. T5 [( l9 ?
: { A. S# ~" Y( W" gTVBNOW 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。I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |