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7 ~5 C2 s& h: E8 A4 e9 q/ }
Think about it this way 公仔箱論壇, [/ @  n. c7 N: b
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
& V9 N! q" P" s; ?9 w2 t% W2) 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
% [$ m6 B) T. x7 i公仔箱論壇
, Z" X3 v9 F- V: D* H3 atvb now,tvbnow,bttvb[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =6 n% F+ ^* ?: l/ r

3 D' Q, V2 c3 g) b  E" H, N8 ]: mTVBNOW 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。[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18