原帖由 prozzy 於 2007-5-18 23:05 發表。 公仔箱論壇* I, K9 G. g, A8 g" w9 p
the answer is -$97 for sure.
: U6 d/ @+ g6 H4 B# AThink about it this way tvb now,tvbnow,bttvb/ i7 W/ i. y8 z1 [" |
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
9 |, y9 ~6 u$ P" n% b" n! G' ATVBNOW 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 ... 公仔箱論壇' x$ Q" l: J5 W) M6 s+ n8 a9 g1 {
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9 ?7 _4 O% Q- Q7 v9 B5.39.217.771) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
/ r* c4 [* a) R A7 h5 l 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。8 _$ T- V' X3 O- w
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.5.39.217.77! s3 i( j) [$ H6 v6 B
% ]) M/ S; R$ S8 v" W1 y XTVBNOW 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. |