原帖由 prozzy 於 2007-5-18 23:05 發表。 
+ x$ k! n' Z% {: i公仔箱論壇the answer is -$97 for sure. 公仔箱論壇5 |" m( K. \7 O, ~: q* W+ V& H
Think about it this way tvb now,tvbnow,bttvb! E1 h3 h3 r+ A+ v' Q7 ?
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇1 v$ d- c' v" g0 }
2) Now, the owner discovered that the 100 bucks is fake. You can th ... $ Y% E3 l: t% F- L, P2 p& 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。公仔箱論壇6 U8 P/ R' v# V, d! J, F
/ b: v% C3 a/ G* S; 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 wrong9 [+ l! A) U: S, Q. Z3 f
os.tvboxnow.com B/ m# v& D: x6 Q; l
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.
6 P. N% r2 d' i6 Z) \+ OTVBNOW 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。
# a# m0 n' I8 k! l* YTVBNOW 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。I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |