原帖由 prozzy 於 2007-5-18 23:05 發表。
- Q4 _, P; a0 Y" L" j5 Y0 a! K* r5 YTVBNOW 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。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。6 @# W. T u6 t% x
Think about it this way * D5 w; ~0 {/ I( S: q
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
r6 K& @9 Q, z. o2 B公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ... * j8 y: Y& i" z% K" q1 [6 _
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TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。9 q* I6 U p; v. E5 K5 h
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
8 T8 \4 S9 S, m1 B$ `4 Q* uTVBNOW 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。
( w; a+ J8 M6 B$ Athink 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. |