原帖由 prozzy 於 2007-5-18 23:05 發表。 tvb now,tvbnow,bttvb6 V6 x; Q, C" J$ O
the answer is -$97 for sure.
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9 d1 a. j% G5 O) R! w! stvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
6 ~2 Q% H d9 H3 ]: m$ ^www1.tvboxnow.com2) Now, the owner discovered that the 100 bucks is fake. You can th ... $ r9 \2 T7 U. k0 S" `www1.tvboxnow.com
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" \ C' P6 P" K6 T* ^1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong公仔箱論壇. g0 p V* s F8 f
! i8 n2 f. {$ H. |. O+ Q6 U, T) I2 uthink 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. |