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.
1 ^% ]+ Q0 R; l( T+ ?/ EThink about it this way 2 M- f) P( g5 H- U+ {& J3 f/ Q
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
$ Y! l9 e7 H- P2) 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
6 X; {  J% o+ m# dtvb now,tvbnow,bttvb  v- Q  ]* U4 H- f9 k1 h) T
[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =os.tvboxnow.com" E5 Q1 U" |9 n1 d  |  \6 {

$ J: {7 s; @3 `- }. x8 ~tvb now,tvbnow,bttvb[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18