skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 / ?2 X; s) @; N. m8 L* R1 _- x
the answer is -$97 for sure. 公仔箱論壇# s7 r+ L  n9 ?0 ?
Think about it this way
+ {. I9 r0 r  k7 W. G1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
- \. v. S- ~" g公仔箱論壇2) 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。; j' U! ]' I4 E# L
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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 wrong5.39.217.77:88980 K6 E: W3 v8 n& X$ b' W1 s

5 P+ h7 [+ S2 r, M% x9 Z5 ZTVBNOW 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。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.
$ G& L& e1 W7 p! T* R  K# K, Ttvb now,tvbnow,bttvb # a1 g. A7 P" m& ]+ h
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 ??? tvb now,tvbnow,bttvb5 X# \* i  D/ S# }& @

& s: t8 [8 ~! Y8 W% t  CTVBNOW 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。tvb now,tvbnow,bttvb7 ?- L! `, p- l# ^% Q
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+18TVBNOW 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。) U8 S% T; A8 n1 N: x1 d

8 A" K. N( d: O7 P: C7 B0 X6 U  n公仔箱論壇[ 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!!!