原帖由 prozzy 於 2007-5-18 23:05 發表。 tvb now,tvbnow,bttvb" `, w, q' n9 J9 t; @# _
the answer is -$97 for sure. 5.39.217.76/ w* j. k& j& Q, v# ~% |
Think about it this way
* C9 r5 R/ ]8 m3 [! Vtvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。 A; `7 ?" ~' e: I$ U6 u9 I0 v
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 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 J3 B6 J I% v2 u! A$ u4 ^
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7 Z. _- N- h3 y1) 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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0 p8 K. C4 w: T7 Hthink 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.5.39.217.76! h3 I9 i8 ^& `, W2 e
; G% P# z7 A; l( V4 L9 j. nI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |