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. www3.tvboxnow.com: h' L4 l( R6 o. p' P
Think about it this way
" g! Y% D: C+ d: y. y" P  c1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
1 Y: M" P- t8 ~& u5 k1 O- _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+ I7 I- Z5 H# p. Q% A- D2 X, ?

( S, v  q) |! l$ A: I* e0 x" F[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =
6 V$ |, w* u8 }
3 e. @( J( b7 w! Z2 r[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18