原帖由 prozzy 於 2007-5-18 23:05 發表。 
3 b# d% h: B4 Utvb now,tvbnow,bttvbthe answer is -$97 for sure. ; n* l( G+ z9 A( p9 K
Think about it this way 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。) T1 d" n: { L
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)% d2 S2 X$ y! x( h9 w9 O
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 公仔箱論壇4 T0 F4 @, c7 b% p) x. o
tvb now,tvbnow,bttvb( I4 c% x3 |# z
: M0 h0 F4 X* y/ c, ?5.39.217.761) 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。: `8 _9 Y% b* q
% X- {: T9 p/ b$ vTVBNOW 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。think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.tvb now,tvbnow,bttvb# N) q: a L9 G6 A
: G4 J7 m' f" w) C3 M$ }% i8 q& Ntvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |