原帖由 prozzy 於 2007-5-18 23:05 發表。 
. L3 q/ j9 r( G, i- k! ^ b$ pthe 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。% b* }' G1 T6 K( `' b2 B0 ^' W- r1 t
Think about it this way
$ D9 F; t) w4 q4 F" I$ \, u+ z! U& s1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
! D( {% A% i0 n Z5 _% B公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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n8 v7 x) L& C' U2 Y4 Q9 l' s公仔箱論壇1) 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。( Q' a) ]+ b) z j
" h9 R; N! ` C% Q. N2 q+ Z( i* \% zTVBNOW 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.
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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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