原帖由 prozzy 於 2007-5-18 23:05 發表。 
$ l ?6 ~$ k+ H& S1 Kthe answer is -$97 for sure.
2 s! w- d$ U& e" X7 ]5.39.217.76Think about it this way 4 O& b: h# W5 ~, o% t# S3 D
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇 q; D" d y, s- a4 f0 W6 r
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
% `5 @0 G9 ~8 Q/ D, t* e; _: rTVBNOW 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
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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,bttvb1 S; I+ x# X' n( v- ~: }
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。3 F& d+ m1 B5 }/ ~7 |
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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