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.
; Y& b5 F7 Q( ?2 Q/ _Think about it this way tvb now,tvbnow,bttvb1 Z7 j& g. w! G/ i6 ]& T
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.777 B- n$ K4 u& }# W# _$ d
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
3 {3 g: u% `( D! }- p) jtvb now,tvbnow,bttvb7 m8 ]/ x4 }1 r; M5 O
[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =
3 _/ O* z7 R! F; E5.39.217.77
  D0 s( P. X4 u' m1 G" k0 c0 {公仔箱論壇[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18