原帖由 prozzy 於 2007-5-18 23:05 發表。 
+ q" t+ `( C/ T- a& K, `4 f b5.39.217.76the answer is -$97 for sure. 5.39.217.761 \: t# ], I- j- V) d, U- q) `
Think about it this way 5.39.217.76, N% V ?% q/ f Z1 u1 p7 O+ @
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.76' H9 g3 R$ w7 d8 T. F7 s
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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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
7 [. S8 S" y, k6 q5 Mtvb now,tvbnow,bttvb
# s0 ?3 H- J$ `8 O* {# g5 gTVBNOW 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.7 d3 s! n4 ~0 }1 g) Y8 ^- O6 o
tvb now,tvbnow,bttvb3 C3 p* K5 [2 i; e9 m+ V
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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