jayjan2046

97啦

icy2828

total lost $197

foofoo8282

....ME A BIT STUPID 179+ITEM......CORRECT.....

shhak47

97元，肯定对

209241

亏了197+礼物

davelui

?????????

prozzy

the answer is -$97 for sure. 公仔箱論壇: v& z0 ]+ w5 d; |! B' h2 H
Think about it this way 公仔箱論壇$ \% W+ H1 y. ~1 B- N
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
8 z" d$ r) \+ X2 f! @+ d2 z! a* Ltvb now,tvbnow,bttvb2) Now, the owner discovered that the 100 bucks is fake. You can think this as a lost of $100. therefore the overall gain is $3-$100 = -$97

dg168168

ryukihero

79-(21-18)+100+18=197

sisccsis

i would say $97 (79 + 18)

tmac2008

97 easy

tat_tat0210

i think it's 77公仔箱論壇- h, }6 b( K8 ?/ |4 b
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 i6 a$ F  z$ e7 D/ f
[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =
* G+ r& r- ^' `tvb now,tvbnow,bttvb公仔箱論壇. m: r2 H) g9 t' G; c' J
[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18