原帖由 prozzy 於 2007-5-18 23:05 發表。  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。0 e) Y' \& `0 ~2 b' A: H; \
the answer is -$97 for sure. 5.39.217.765 d6 |! [( J8 p: P
Think about it this way
% q6 j8 h5 T4 ?" I0 o) H公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)0 D- r: V3 R( g( ~- I; t
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
- n6 i% k D$ n) P' UTVBNOW 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。 公仔箱論壇, z7 y, B/ r/ \3 [9 w1 c
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
7 }( d. @3 P$ R4 C8 H% q- j, i
9 H; p- J+ g/ 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。think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.# [: E$ _) g* C6 P/ Y
# r! }0 E0 H6 L% `0 H8 h+ {' QI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |
發表於 2007-7-10 05:18 PM
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發表於 2007-7-11 03:19 PM
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