原帖由 prozzy 於 2007-5-18 23:05 發表。 
2 Q' y6 ~5 l/ w: t' J5 P5.39.217.76the answer is -$97 for sure. TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。' f" V/ g5 X9 x! O0 L: y& A
Think about it this way
7 w4 a/ `$ P( k0 A9 c0 q3 }% d) k1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇& R2 ?% [* c* H
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
. W' P* k6 F4 W1 yTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 公仔箱論壇. \, r/ B$ t! B- g0 ^1 P8 p
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb6 i: [- n1 n2 w( M! t' g B( G
* }$ g; O/ W' U, u3 _& b$ i. A l
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.
' Y# r9 o2 b! Q' N- s1 `7 T公仔箱論壇 5.39.217.766 R) Z2 x0 _2 i; }
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
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發表於 2007-7-11 03:19 PM
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