原帖由 prozzy 於 2007-5-18 23:05 發表。 
2 y' c# k1 O) W1 P5.39.217.77:8898the answer is -$97 for sure. TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。( T% R4 ~/ c4 G+ ]
Think about it this way tvb now,tvbnow,bttvb$ ^% Y. P8 Y: {. `, _
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。. O/ n1 H: e3 o& C
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 6 o5 W3 W4 A- W# T q
公仔箱論壇0 i o8 o7 [8 e
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong$ B" ~$ T. R1 \; k4 Q
5.39.217.77:8898- t( S6 R; i* Q% J" N0 d6 [+ O
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
1 w5 T; z4 D; ]4 V7 M& qTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。 TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。4 Z6 ?4 J4 u$ R* C, }( n
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |