原帖由 prozzy 於 2007-5-18 23:05 發表。 
: Z8 {& O# A0 s I; A公仔箱論壇the answer is -$97 for sure. / p/ H- v6 l* @6 ~- r& b4 c
Think about it this way
* o' v1 i; t8 [ S0 q$ L公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。6 a- g6 ~! z& i6 t) {$ }& o
2) Now, the owner discovered that the 100 bucks is fake. You can th ... / a- O! _- V0 G! @' m
公仔箱論壇3 b0 h% Z( ]- u1 x9 V
6 @ W" I! T1 L0 W# Q( U: d) r4 k5.39.217.761) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
9 r+ x2 d7 _# h! K. L$ q) a: G; e8 c0 ]tvb now,tvbnow,bttvb
+ C6 a" a( a% a: w5.39.217.76think 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.3 K* W8 h( y, L: n9 t! J0 j
) f% _4 B( c8 r, M, q2 w7 M2 D& @5.39.217.76I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |