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 -$97 for sure.
0 l. G3 l5 j$ T4 \" jtvb now,tvbnow,bttvbThink about it this way
- ]$ C7 B, X& t. z  ~! X# a1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)! Q5 q! I6 V6 \8 c" ]
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
7 s" k+ m) P4 T/ H% \2 H) cTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。
2 `# {; D7 j; Atvb now,tvbnow,bttvb[ 本帖最後由 tat_tat0210 於 2007-5-21 03:48 AM 編輯 ]

jwxie518

100= =TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。3 m& T1 E/ t  Y
( r/ G6 K! f) g
[ 本帖最後由 jwxie518 於 2007-5-21 03:51 AM 編輯 ]

leezhao2000

79+18