原帖由 prozzy 於 2007-5-18 23:05 發表。  , b! M- w5 A4 l$ {" Q& k/ j
the answer is -$97 for sure.
V* }2 O' H% Gtvb now,tvbnow,bttvbThink about it this way www2.tvboxnow.com7 H7 E2 Y* D8 m$ ]4 B8 Q6 c2 Z
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18) N* r r9 {2 G7 t1 o e
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
5 |, e+ I! K* N2 r" [3 R3 \tvb now,tvbnow,bttvb : O/ k6 I A1 F4 g
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong公仔箱論壇; t0 O4 W( { P5 b( V
2 [2 F. W! y9 m! x9 }- `$ [www2.tvboxnow.comthink 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.www2.tvboxnow.com; N* t4 S8 D- `- v
) w6 U) ~% }% O" O3 STVBNOW 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. |
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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