原帖由 prozzy 於 2007-5-18 23:05 發表。 
, A* o3 Z6 T( L, C, z+ [5 G1 m* D' Nthe answer is -$97 for sure. os.tvboxnow.com8 o5 d6 t9 Z) }5 x
Think about it this way : V0 X" }8 _5 z. o! t6 [
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
+ { Z7 m8 u- F: `) g! }7 ?2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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; y. {8 K( g/ z3 N o+ ^6 fTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong) d6 w1 @+ R2 Q, K
5 m3 X" o! n8 k" r6 U- E$ V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., R( `4 |& p p0 w4 v
$ H c6 o; U$ e* P% g# p9 eI 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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