原帖由 prozzy 於 2007-5-18 23:05 發表。 
' S& j2 Y& j( J6 T) _, O公仔箱論壇the answer is -$97 for sure.
/ `% h2 }$ j) n& Q8 u" @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。Think about it this way
N( s) [7 k& C/ k公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
8 i+ P; B/ p; [1 e2 ~5 h& e/ QTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。2) Now, the owner discovered that the 100 bucks is fake. You can th ... TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。/ a# b @, ^$ I# G @5 _0 J
% ]3 N# u, z0 A) U, ]0 ~6 V% _* o公仔箱論壇
" c5 n5 u+ y/ n3 \公仔箱論壇1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
' h* m' K' @: U# X3 \ 5.39.217.76. O3 ?# i* ^9 v5 X3 h$ a
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.
- H" `7 }' M8 K1 K5 p! ]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。
6 I7 q( M" V+ C1 H& Y- {' RTVBNOW 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. |