原帖由 prozzy 於 2007-5-18 23:05 發表。 
$ f! C* _* v' Y9 P, ]8 fTVBNOW 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.
. d3 p7 v8 R! v; C# {% CThink about it this way
# Y0 X. m/ p9 E7 b r1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
]( e9 U& U) Hwww3.tvboxnow.com2) Now, the owner discovered that the 100 bucks is fake. You can th ... ! L4 d6 M7 n/ S c7 E
5 x& Q, @$ [) J- \5 p6 p/ i5 x; @tvb now,tvbnow,bttvb
8 h$ W, ?& ~2 U/ Q1 k) TTVBNOW 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 wrong
- R2 l5 c1 M0 v h1 v. O- N公仔箱論壇 tvb now,tvbnow,bttvb- H" q* e! Y( Z4 L ^0 z7 ]' Z# }
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.
0 B: h. U/ D& [% B8 j/ 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。
! J4 d! k) z9 G2 D; Q公仔箱論壇I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |