原帖由 prozzy 於 2007-5-18 23:05 發表。 
6 ]" ?1 [/ P+ J" B+ @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。the answer is -$97 for sure.
p9 J* A7 o( M2 L1 k& T公仔箱論壇Think about it this way tvb now,tvbnow,bttvb- O' w( L9 k) M# n; s1 _+ G
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。) f+ q( [+ Y7 K% {' D
2) Now, the owner discovered that the 100 bucks is fake. You can th ... + z# d$ @9 c/ `tvb now,tvbnow,bttvb- P9 x9 G& u p' k
5.39.217.76- \$ R+ ~5 E9 E: c/ h- n: y) u9 b
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong/ A3 W6 x: g ^3 c* W6 {4 ]
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。. c! l, Q9 m n+ }! h% }; B6 {
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.
& C8 E5 d7 C! d- y# E# \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。 5.39.217.76* [1 o( r& v I& J7 s! q8 A
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |