原帖由 prozzy 於 2007-5-18 23:05 發表。 tvb now,tvbnow,bttvb S; j3 E( T& [
the 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。. q4 N* n+ ~2 k* i
Think about it this way 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。# }8 X3 m/ I' h8 M% B5 @
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
, v( ]* f5 P- E' u+ D3 U4 k5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ... + U, C5 c Q, W" Q7 ?9 x
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3 i+ @ D8 R) O H1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongTVBNOW 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。6 L" G# L8 B4 ^; O
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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 Y6 w5 i, v2 j5 z( n4 h, ?9 d
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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. |