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 -$97 for sure.
1 @3 P* R, |! i# _0 i+ {Think about it this way * i2 q1 i( e; z$ i: k& M& P5 v
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)! U% L4 |+ W/ C0 ]0 c/ h5 H
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
1 e% q6 ~4 O; {. g0 l
2 i" {) Z. m7 L& q- a) Ewww1.tvboxnow.com[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =8 s6 t' i/ L+ K" C: s7 F+ J, |
tvb now,tvbnow,bttvb: w0 D% _+ g& h5 N) x
[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18