原帖由 prozzy 於 2007-5-18 23:05 發表。  公仔箱論壇3 p9 q) g+ J" b- q0 D
the answer is -$97 for sure.
% h7 G, V/ u# C/ E& D3 ] sThink about it this way
- V8 J( W7 i0 r. ~; w4 P* _1 W5 s; ctvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
' U) ^9 n7 D$ u/ {2 P. h j5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...
5.39.217.764 [* J! p( h3 X: c' Q7 W
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。- q- A3 z; ~' V5 ~
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong公仔箱論壇7 f, v5 i$ c2 x% Z* a3 {. v
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。" O; U) K) K6 V& a# ^5 p. L% V
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. w: q6 [6 J* W7 k& R- V
) G' j! N" u3 Q2 t/ utvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |
發表於 2007-7-10 05:18 PM
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發表於 2007-7-11 03:19 PM
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