原帖由 prozzy 於 2007-5-18 23:05 發表。 公仔箱論壇6 }( L5 ~2 W+ ^& ]6 o' p
the answer is -$97 for sure.
s4 G5 s+ y, y' V q' NTVBNOW 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。Think 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。6 [* e/ D& y. g7 C5 w2 Y( S* J
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)3 l2 N& Z" t3 ` i! z. u: N; a
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 公仔箱論壇- h$ k4 G: W, c3 E
5.39.217.762 J! P9 ]5 R: |4 K/ x( a, ]& E
8 W2 A5 x& d @$ N6 u5.39.217.761) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong2 _1 f% D, y B) A& ]
8 i0 X- }) P {" O; w! b# J" p5.39.217.76think 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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1 q) p3 v" C, i; e, i- w. B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. |