原帖由 prozzy 於 2007-5-18 23:05 發表。 
& }9 y7 u2 q% {8 _/ E: z$ atvb now,tvbnow,bttvbthe answer is -$97 for sure.
9 W! X5 A1 n/ U, \5 rtvb now,tvbnow,bttvbThink about it this way os.tvboxnow.com9 W- a1 r: e( Y2 \' N5 e
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)os.tvboxnow.com2 O0 _5 ?$ g8 p' {5 ?( {
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
2 M+ b$ R2 J. h1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
; `1 c- F$ W) [' x2 f# `os.tvboxnow.com
+ V, P1 P6 N0 j zthink 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.
: w1 B* c4 p U8 `! u os.tvboxnow.com0 s1 {# ]" k" {
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |
發表於 2007-7-10 05:18 PM
| 
發表於 2007-7-11 03:19 PM
| 
