原帖由 prozzy 於 2007-5-18 23:05 發表。 ' v/ X) Y! D+ J% B% O1 q
the answer is -$97 for sure.
6 v' _0 Z) U; H& u6 U' c6 a( jos.tvboxnow.comThink about it this way
1 y/ D0 X+ Z3 C2 _7 S1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
5 R3 U! X9 t) @, U6 B2) Now, the owner discovered that the 100 bucks is fake. You can th ... ! i; D' ]$ c- `tvb now,tvbnow,bttvb
5 Q# _4 a* ?' z8 ^& m' t2 P; QTVBNOW 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。
$ v& s" i: R6 f. H7 x, w0 M3 f' _: X6 eTVBNOW 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
5 |( ~+ X' P) r+ T% S9 N) c公仔箱論壇 tvb now,tvbnow,bttvb+ `; D. @; N. i9 `7 n( p
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。$ s3 t2 W/ h6 I( }. @% M I: W
# d' R0 \* @' S8 L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. |