原帖由 prozzy 於 2007-5-18 23:05 發表。 7 [" T. G, A8 k# G* b
the answer is -$97 for sure. + l5 f& U; \( E, j' J. [( Q9 s |/ ^
Think about it this way
0 `4 U8 j# h+ y$ L' U0 G5.39.217.771) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
2 u; |4 l. D5 r# V( M! j. a; @2) Now, the owner discovered that the 100 bucks is fake. You can th ... TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。" Q3 ]/ C( _8 K- Q6 g! W5 O
& Q& L7 F: [( J4 l! Q6 H1 dTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。
) j) x! }7 J6 ~' }3 Y) O4 |5.39.217.771) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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1 T+ K8 h+ \; A$ d4 a' K: u5 m3 v, ~$ Y公仔箱論壇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.
4 S- u5 c/ t: [7 |+ K公仔箱論壇
& Q0 z, v( a' T b/ nTVBNOW 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. |