原帖由 prozzy 於 2007-5-18 23:05 發表。 
% w0 }" F# L# P# D3 Ytvb now,tvbnow,bttvbthe answer is -$97 for sure.
' m$ B) p7 F0 u& k ftvb now,tvbnow,bttvbThink about it this way
: c, ?! p# x5 x% M1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb* t0 S- Z/ W0 Y
2) Now, the owner discovered that the 100 bucks is fake. You can th ... + x0 G6 j: ~2 w6 k ?5 U; k
tvb now,tvbnow,bttvb' E, B3 S6 a: z& L5 f
公仔箱論壇: S A3 |: @- Q) e+ S. T
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
( x& ]- F R2 N) F( ]5.39.217.77:8898
/ S5 o" p4 G+ d( ]! qtvb now,tvbnow,bttvbthink 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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5 o8 x8 t0 d- a! |9 R% rTVBNOW 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. |