原帖由 prozzy 於 2007-5-18 23:05 發表。 
' U+ d- k5 J: F) |2 a( W [tvb now,tvbnow,bttvbthe answer is -$97 for sure.
( p+ q* }6 S6 A5 t! JThink about it this way 5.39.217.76, B$ K: ~8 A' `% c+ \7 t6 a8 f
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
7 V3 S$ V; q6 F: Q5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...
: C/ ^- d: T A* OTVBNOW 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 J: N6 [. Z8 z3 A3 T$ a1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb; j+ G6 Z. u" O6 }' m
) s* M" u: M. G- x/ ytvb now,tvbnow,bttvbthink 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.7 s6 w. _" |* m4 k: t0 w
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。4 _' Q0 Y- I: } k! V( x+ F
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |
發表於 2007-7-10 05:18 PM
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發表於 2007-7-11 03:19 PM
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