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 -$97 for sure. 公仔箱論壇) a/ U7 s  W2 c9 E9 O
Think about it this way 公仔箱論壇7 _7 m" v7 k. R$ j  C' z2 l
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
8 f/ L3 O7 q3 n1 O0 @# a8 m+ G) Y公仔箱論壇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
6 ^% H- b+ y, f! B3 U2 v. q/ ?公仔箱論壇/ A! I7 u3 ~# g" _6 m% x
[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =
4 z$ L/ }  }8 [) V7 D& t/ @2 Ntvb now,tvbnow,bttvb4 ~; @* r$ F: I3 X) d; s" a% c
[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18