原帖由 prozzy 於 2007-5-18 23:05 發表。 
- z' M( b8 @- m" zTVBNOW 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. . Y8 O/ C/ o* v! P% J
Think about it this way
* ^" |8 T, U8 o9 i- Dtvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
" C3 [% {! c8 t' c; W3 U2 S- h6 a2) Now, the owner discovered that the 100 bucks is fake. You can th ... ; e& _5 V: B) U0 O( mtvb now,tvbnow,bttvb. X- d, G8 J! _3 r, T/ C
tvb now,tvbnow,bttvb# y: H/ Q* U3 z- a2 |
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
/ P. t3 U* P* ]% W& P& 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。 公仔箱論壇% T7 K4 ?& A/ [: p( G. L. E8 H+ t
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.
& F3 w; \1 n" {9 D9 B% Jwww3.tvboxnow.com
2 Q# t* X! c' E* p/ O7 qwww3.tvboxnow.comI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |