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' n; Q4 A; a8 L' |8 h1 @# V
Think about it this way
7 \  n6 y0 ]' ~0 H3 ?5 y1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
5 I& X* ]* |& I6 }( R$ u2) 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 775 w- Z8 A) |2 S6 W1 b" }

# K  a. }- L2 l: N# M* N5.39.217.76[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =5.39.217.76' y5 |6 [# v1 R6 d. {$ o
5.39.217.76/ S. u5 H3 r, G; [' o& _. D- \
[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18