原帖由 prozzy 於 2007-5-18 23:05 發表。 
9 X% V4 X. @" h* n; ^ t5.39.217.76the answer is -$97 for sure. 9 i8 G' T$ q5 W5 l2 Y- V
Think about it this way
" \1 u5 ?# S0 f' R7 Wtvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。9 F+ H c* S# y- V* A/ [0 M5 A+ J
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。1 Q$ [& C# j3 Z( b0 C
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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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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.* {5 L* a2 y7 j' N# |7 t" Y+ q
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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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