skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。
  b- l3 W# l# R4 F% f8 v3 v2 fthe answer is -$97 for sure. 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。/ h% o7 |5 b1 y5 a
Think about it this way 公仔箱論壇/ b6 C. f# B) X' ^
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
2 k: y/ e; n! _" h5.39.217.77:88982) Now, the owner discovered that the 100 bucks is fake. You can th ...

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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。+ h5 _' n' k: l8 z/ W3 r/ v: t
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongTVBNOW 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。0 j8 d. ?4 f$ k9 f& b

2 a8 v% l, I9 l5 A5 d7 ?8 @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.
$ o1 T9 d  n5 ]. |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。 * w) }- i, m; f" w2 S7 j$ i
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong.

skybirds

??? 369258 ? 2007-6-28 23:29 ???
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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。0 s3 N9 T- ~; h0 Q. X) J7 S
dun forget that guy, not only the $18 dollars product he got on hand, he also got $79 dollars on this hand, he paid a fake 100 dollars bill, it means he paid nothing, and the boss gets nothing too, so u need to add 79 dollars to the total.

230km/hr

97

joey80

179+18
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[ 本帖最後由 joey80 於 2007-7-11 07:08 AM 編輯 ]

skydn

118

mkcjojo

??

fisherdai

18+79=97

wuchingching

not 97 ma ?

mibird

197

kent8118

Thanks for sharing!!!