原帖由 prozzy 於 2007-5-18 23:05 發表。 公仔箱論壇: [8 k5 J* |' ]8 a# x
the answer is -$97 for sure.
! b% E# N* ]6 s! QThink about it this way
# X' h( [8 B! y& X, c6 _. A1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
3 N) w1 }) Y4 P3 q- u! R. twww1.tvboxnow.com2) Now, the owner discovered that the 100 bucks is fake. You can th ... TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。" U2 L, _8 E( S& `2 { o; `
tvb now,tvbnow,bttvb6 ?6 V! [* f' N0 z
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
8 {& n$ G; c w$ q4 R" w' E; v3 m8 v, m公仔箱論壇
+ ]+ d9 \# v! e/ [% Ltvb 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.& k" B5 I! g7 u* w
8 J {5 B) Z! S8 ^+ h- f3 xI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |