原帖由 prozzy 於 2007-5-18 23:05 發表。 
6 V+ x' y: v# T7 O; V8 ATVBNOW 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。the answer is -$97 for sure. tvb now,tvbnow,bttvb4 `' ~ h" B" N7 h$ B9 I, ~3 ^- L/ i
Think about it this way tvb now,tvbnow,bttvb5 S9 d* l( L. A( H3 R6 P
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb$ v& z! D7 f& p* h4 T' r
2) Now, the owner discovered that the 100 bucks is fake. You can th ... tvb now,tvbnow,bttvb% |( B V. F2 L6 G
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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 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。& ^5 B1 ?# b4 q
; [3 U8 A/ a* d+ @8 {0 x; @5.39.217.77:8898think 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.5.39.217.77:88986 j: a- q2 I! W D; f# j7 J# H0 Y
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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. |