原帖由 prozzy 於 2007-5-18 23:05 發表。  公仔箱論壇& [/ _5 Q' U8 }) l0 t8 {8 S) l% g
the answer is -$97 for sure. , y4 h$ V2 P4 g' ~
Think about it this way
3 v t0 o0 q$ i公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
0 a9 y) I1 f0 @$ Z公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong4 ]6 a' N9 K5 f* f2 `
5.39.217.76: s& d, Q0 d) V) S( V$ E% O
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.tvb now,tvbnow,bttvb3 ` ] L9 H2 G
+ E3 N. H/ x! C: @1 d4 }2 bTVBNOW 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. |
發表於 2007-4-9 06:27 PM
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