原帖由 prozzy 於 2007-5-18 23:05 發表。  5.39.217.770 T9 d- |, s! B0 n! s+ Y- d
the answer is -$97 for sure.
+ b+ ` P5 W" p. p公仔箱論壇Think about it this way
9 A* h9 ]1 w- j6 Gtvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇) n- ?5 M* ?# [( ?. @8 y0 S1 X
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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5 x' Z2 ^- Z/ a9 q f' p9 p nTVBNOW 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 wrongtvb now,tvbnow,bttvb9 j; n/ k; R% s: V: E% |4 W, ^
8 K, S2 i8 h8 Q) k4 {( E. M公仔箱論壇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! s- h- c1 Y- z
4 }% Z9 q/ l8 ytvb now,tvbnow,bttvbI 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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