skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 : O0 w9 w9 T0 v4 S' J6 X4 U- \
the answer is -$97 for sure. 5.39.217.76: Z2 c3 v- N! R1 z
Think about it this way
6 B" ^0 j: ~# W! `; A公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)3 E, U% F$ b) J  ^
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- m1 t- j2 a$ ^9 a2 m
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。) y$ `. [: \' G0 y
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
, c8 Y0 m% w$ G+ xTVBNOW 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。
: n# X+ z% r* R8 ~9 G4 Y3 j% z公仔箱論壇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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- P6 x0 _" x' j2 @( a8 o3 sTVBNOW 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。
. c1 X4 ]( H4 G5.39.217.76dun 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
2 _5 f1 C$ l' s- y# UTVBNOW 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 ?* P8 X9 V9 m( |) H+ l9 Y
[ 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!!!