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 -$97 for sure. 2 R2 K: R+ @; D0 D1 k$ t
Think about it this way
& s- C+ l3 \5 n, ~, ~2 i7 @3 R公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)2 w7 ?' O9 q9 |5 f  u. A# z
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
; k0 @- U( I4 p
! s) X! ^8 W/ ~, ~[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =公仔箱論壇, x" Y  D! H( K+ K" Y0 @
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[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18