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" s! ?0 O  i- \& g4 z
Think about it this way os.tvboxnow.com8 u4 Q) N, T0 ~4 P/ I' r- S& ^0 a) C
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
! O# j5 x4 ]% A# l3 v7 ^, w+ d0 ?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。2) 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
" C7 C1 q! g  z# S5 KTVBNOW 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。公仔箱論壇3 I* g: {, x' O8 v1 ?" a
[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =$ S% F) C$ E4 e; z( ^. {

- k% m7 c1 s, w( k[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18