原帖由 prozzy 於 2007-5-18 23:05 發表。 
- @' [( i: {$ r( O7 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 -$97 for sure.
: A. w3 _$ Q4 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。Think about it this way
, o- K" Q# s! B$ Z. J. U4 K1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
7 n# y P4 F/ mtvb now,tvbnow,bttvb2) Now, the owner discovered that the 100 bucks is fake. You can th ... 0 c$ x# r4 ?: X1 V( z9 `, }! q
l7 `( \2 \3 e) A- J2 v公仔箱論壇 $ Y& `4 y2 z4 V. U) [ l; ^1 N$ f
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong. P5 G0 \/ Z7 ]7 v* S- B9 [
# }2 a- v& L q* A公仔箱論壇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.公仔箱論壇2 o0 S! {: d" }2 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。8 k+ Q6 s( y" \1 \
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |