原帖由 prozzy 於 2007-5-18 23:05 發表。 
3 o, Q0 A( J# {7 xthe answer is -$97 for sure.
) M" @5 y, V* _0 @6 tThink about it this way tvboxnow.com& {9 w' @" @3 g8 b7 l8 t' C
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)# t) Z- Y& C6 z8 [' A- r: i3 {
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
" u9 g. c E$ {% I9 V, L, l. g8 i tvboxnow.com8 |4 H2 @& L, Z4 Q# J& h m
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.
3 f* y- H- @. Y* B8 p4 C7 a( L3 ~公仔箱論壇 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。; O5 t) j& S0 b2 @9 N0 o' q
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 2007-7-10 05:18 PM
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發表於 2007-7-11 03:19 PM
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