skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 + O3 [0 r% [, |: J' T9 P5 N
the answer is -$97 for sure. TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。5 W! V$ ^/ t5 v/ E0 _" k
Think about it this way 2 y; {9 J& i" p
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
2 x9 c( D4 S& Q- q# |! wTVBNOW 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。2) Now, the owner discovered that the 100 bucks is fake. You can th ...

6 ]" x9 b+ ~4 `* I- |: C. Z$ g$ jTVBNOW 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,bttvb  @. Q: }8 Z7 F" f: @
* k- P' u- ?1 X7 y: l' L5 G! A
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
: ~6 @( l: O7 Q) f" j. L& v: G2 n7 v5.39.217.76 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。9 d* R8 {; n  e+ |
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.公仔箱論壇) M' F0 y4 Q, i% r  Q+ F
3 w. I$ m2 q0 q$ K2 G5 P
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 ???
8 S/ g# A& a' q" }. J公仔箱論壇

3 b# F! ]  S) s6 m5 r+ `, v
公仔箱論壇8 u0 g- _5 d: \3 A% e$ U6 `' }
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
+ D' Y% Y5 [0 l" ]* R公仔箱論壇5.39.217.76+ U( s. R) X. P* W$ u0 P8 {9 D
[ 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!!!