原帖由 prozzy 於 2007-5-18 23:05 發表。  tvb now,tvbnow,bttvb6 Q1 i. e6 b+ q3 T
the answer is -$97 for sure.
9 D* o" W9 a2 G8 N5 ~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。Think about it this way 公仔箱論壇- p, u% s5 V5 n; w" H
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb. h/ d" H5 i% J/ \8 |0 a8 z# G
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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公仔箱論壇9 l( \4 e4 U. I2 `
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
( h* M% w% I6 j3 X' |1 ?- [ t公仔箱論壇
8 v$ e# t3 K- B& _0 b6 f7 W% ^5 aTVBNOW 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。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.! x5 M7 |& i3 P
# p! ^! m- Z' C, I4 M9 c6 ], q公仔箱論壇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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