原帖由 prozzy 於 2007-5-18 23:05 發表。  公仔箱論壇! S" ]7 x. p3 ^) Y1 H& v6 w& R
the answer is -$97 for sure.
. p: w4 I+ w k$ `) |5.39.217.76Think about it this way
. ^9 G. d. V- k+ N1 ~. y1) 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。/ T9 v1 \4 F8 R P# ], \
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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/ J0 J% L6 ?3 O1 `1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb9 F4 P, v, ^8 o5 k9 A2 ~
( X, Q( z2 ]0 i- i4 x" dthink 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.! p1 r! Y0 K) A' L4 Y& W
0 g3 X. Y. E5 `, B7 `公仔箱論壇I 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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