原帖由 prozzy 於 2007-5-18 23:05 發表。 
/ c2 U( `0 @+ x- t" nTVBNOW 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。the answer is -$97 for sure.
" ~3 R& d1 F( x! E7 p7 ?: W5.39.217.76Think about it this way
; }3 N6 w$ O; R/ F* O L7 X' jtvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.76& @6 C* {$ b6 c
2) Now, the owner discovered that the 100 bucks is fake. You can th ... * H7 u% s" q5 h; uTVBNOW 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。
- N3 z# ?1 g3 XTVBNOW 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。
+ W8 |! ~& | e9 k; HTVBNOW 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。1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongTVBNOW 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 D$ j+ C+ }
5 V4 Q# K" n' y" g0 b5 ttvb now,tvbnow,bttvbthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.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。/ t5 D" W6 i4 N
tvb now,tvbnow,bttvb( C7 y2 o9 f3 u, p* i! o
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |