原帖由 prozzy 於 2007-5-18 23:05 發表。 公仔箱論壇0 ~( O! K+ q- i" Y
the answer is -$97 for sure.
( W% O o6 p7 Z6 h3 R) d2 r: k公仔箱論壇Think about it this way
4 ~1 K# l7 a8 y. f/ A1 V1 P5.39.217.761) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。% Z; _" K( b/ s
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 5.39.217.76# [/ o8 ~# M0 S9 Q# ^. C
0 Q0 E2 ?4 S: n5 |" q( M5.39.217.76
. [% S* b* g& P1 B1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
1 \2 C. F, o3 l6 [( u
1 t$ D$ c) V$ i) ^9 ~4 Bthink 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.5.39.217.76: d4 G0 p: G7 K D& E Q
- n+ Q& y) U" H2 Q- 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。I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |