原帖由 prozzy 於 2007-5-18 23:05 發表。 3 w4 U& v# x" q1 W' ?+ M3 J% d
the answer is -$97 for sure. 公仔箱論壇, @. U4 y) Q! s0 p# B3 i( \
Think about it this way
" W8 Y6 z, X2 z公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇: w: _5 }* X% o+ k+ p4 n. }9 A! C3 F
2) Now, the owner discovered that the 100 bucks is fake. You can th ... www1.tvboxnow.com! r- \$ c3 f/ J
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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
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7 j; l/ b* B8 |0 G _8 Cthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
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# @1 c$ C% c4 j' t$ FTVBNOW 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. |