原帖由 prozzy 於 2007-5-18 23:05 發表。 B9 m8 N/ ~* I$ p' @6 K( R
the answer is -$97 for sure. " z* ^; H0 d# m( N
Think about it this way
* b, L& p; R" j% 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。1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
* s! x! k+ @+ @1 w/ l9 etvb now,tvbnow,bttvb2) Now, the owner discovered that the 100 bucks is fake. You can th ... 0 t' J8 o# s1 jTVBNOW 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。
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) |1 h6 V4 j; B公仔箱論壇1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong" t7 R ]5 Z6 O& c: Z
公仔箱論壇/ m# s3 i0 D- _# [: a L9 H3 U
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.
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2 J* V8 K& X% q8 K% z9 z5.39.217.76I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |