原帖由 prozzy 於 2007-5-18 23:05 發表。 5.39.217.764 B' `' I! J" G: t' P" @9 c
the answer is -$97 for sure. 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。7 s8 p0 E8 U1 x
Think about it this way
$ p% q: h( H8 w P! h [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。1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
- F9 Q6 s, W! d4 w1 XTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。2) Now, the owner discovered that the 100 bucks is fake. You can th ... tvb now,tvbnow,bttvb0 f# x. A- r# R! u& {
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3 H: q @$ |: S! I' V2 M/ J5.39.217.761) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong! m% h/ a: V% y6 |
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think 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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/ n% y9 K! ]& R7 N& Q* Q' D* p; Ztvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |