原帖由 prozzy 於 2007-5-18 23:05 發表。 tvb now,tvbnow,bttvb4 R8 V5 }/ \; c% q3 P6 Y4 E
the answer is -$97 for sure.
# v, v; C9 S5 `& k& {) H( Ytvb now,tvbnow,bttvbThink about it this way 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。) h8 ]7 T: J% M+ j! o' W
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
O3 M: X( J% c9 R) j9 s3 i2) Now, the owner discovered that the 100 bucks is fake. You can th ... 公仔箱論壇# C3 z/ B+ E6 d$ x8 T3 e) y
. M: r4 D+ T( p8 s7 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。 5.39.217.76- t# e: z# w; Y
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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/ z0 R! U* |4 M" ~! qthink 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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I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |