原帖由 prozzy 於 2007-5-18 23:05 發表。 
& z& a$ t& z" e& J" m1 O! D( X& @5.39.217.76the answer is -$97 for sure.
: {* n$ e, _/ OThink about it this way 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。" B4 O E2 D+ U
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.76$ T" \$ @! T$ o, L( s2 T4 J
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 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。6 f7 H( H! j H% G: a' D
8 `3 R5 H4 h2 H( E: J# I6 ^* H {' ~ 5.39.217.764 y6 l8 \9 W2 F% r; R! D) F2 t
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb, ?1 Z g9 Z3 ?0 u+ K, g3 v" ]
+ h2 g$ S- {$ ?公仔箱論壇think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.: v- ^# T, M" a- B1 S
2 b$ A& S; r, d9 Q+ ^I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |