原帖由 prozzy 於 2007-5-18 23:05 發表。 
, _6 t1 b8 Z1 S! [6 ?% Q" a. |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.
) C- h1 @: s, V6 b2 ?* ^Think about it this way ( |; R* A/ {( e9 j+ W1 Y' O8 W
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
@; s) Z4 ?; @/ [4 r- `# }公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ... 7 [) Q6 s" k* e7 c8 {
TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。; C7 G9 G6 N3 G/ B
. P Z ` n# q5.39.217.761) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
5 E) S$ R; S5 N 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 g0 E: l( v( K* F2 v
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
6 e7 Y0 ]5 q& b tvb now,tvbnow,bttvb$ j/ p: r9 d. p( U
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |