原帖由 prozzy 於 2007-5-18 23:05 發表。 
/ ]0 ]4 p7 B3 F: [0 ]: y9 c9 etvb now,tvbnow,bttvbthe answer is -$97 for sure. tvb now,tvbnow,bttvb& ?9 H# }5 i/ a
Think about it this way
) I7 Y7 l: k- R5 Ktvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
5 C- E! W) Q' q( M/ ~0 ~) iTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。2) Now, the owner discovered that the 100 bucks is fake. You can th ...
I/ ?4 I$ Y) n1 c2 Z& s 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。% c: ]* j" Y, J6 I0 ^4 }
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$ i8 w4 _2 S: s/ k# s
5 F) I9 T4 w. a4 tthink 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.
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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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