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 -$97 for sure.
2 v# H! a/ G' }5 `' Z$ y. IThink about it this way 公仔箱論壇( l/ J% v( \1 l, Z( F+ m2 W( s" \' @
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb8 x, r: Y; E, b; r
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 779 A4 ^. K& g# J: b: O
公仔箱論壇, L" n! n) d& r/ ]  d
[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =tvb now,tvbnow,bttvb6 l7 p2 Z9 h/ j  O3 f4 g/ \' l1 \
  n9 j3 p' e$ K- ]  k! Y/ z
[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18