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.
0 P2 H3 P# E. C6 I5 F% k, AThink about it this way
* J8 j0 B6 m8 B2 A' `4 }) _- d8 M1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18); \: u( Q4 n* F. t' k9 {, f/ k
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
2 o+ w1 ~" X/ x' J
+ o# h9 z( O5 g+ xtvboxnow.com[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =
  M& g6 k( t5 K6 `0 z( u* u, b公仔箱論壇公仔箱論壇7 k- h% ?5 Q4 \/ e8 n( D2 R: K( Z! X
[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18