原帖由 prozzy 於 2007-5-18 23:05 發表。 
" m: D. y% G" f, d5 qtvb now,tvbnow,bttvbthe answer is -$97 for sure.
; v" j+ G" d- C/ l1 c8 E. Y- O E5.39.217.76Think about it this way : y$ `' \! p9 A4 k& l% S) W% v& _
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
/ H9 N( {1 i: W- i0 }公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ... 5.39.217.76% n6 |! Z* D) s6 f# h( C2 c- f
% j/ q8 w: X3 m! V( y2 ?5.39.217.76
) p# {+ u3 H" ^7 z- r: l" z( j wtvb now,tvbnow,bttvb1) 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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+ n3 k" N( m" mthink 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 X; k5 N( n5 @tvb now,tvbnow,bttvb 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。0 E- ^3 W; B5 B4 Y) e& U6 j
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |