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. tvb now,tvbnow,bttvb# r  L9 R4 t0 a9 @7 F. U
Think about it this way
6 n% Y( G) {) M5.39.217.761) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
6 c. A: S  ], Q$ W# F2) 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
0 p' O9 ~2 A" W, s6 R& I
$ w9 I6 d- I, w; F0 H[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =tvb now,tvbnow,bttvb0 P* e  q: q, s* ?2 w0 s

+ F5 A6 }( A+ N5 V5 c( Dtvb now,tvbnow,bttvb[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18