原帖由 prozzy 於 2007-5-18 23:05 發表。  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。 L: m1 u H8 t) T h
the answer is -$97 for sure. " }/ A C) Y+ Q
Think about it this way
; p/ y% g% i p3 h% m6 I公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)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。) |- d* o- X% F Y1 P
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
公仔箱論壇! x+ r; J) s" C4 ?6 ^
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong' q( Y+ `, R, U! i L- ?) Y D
: s6 t( T1 S/ U0 Tthink 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.5.39.217.77:8898( t# i, v' X9 a5 \: H) u* H
) t# g) s/ w8 {# M4 U3 p2 lI 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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