原帖由 prozzy 於 2007-5-18 23:05 發表。 ) f& W4 W7 _. a
the answer is -$97 for sure.
$ W% Z) l& }) E/ L1 s* ^os.tvboxnow.comThink about it this way
3 _" m* ^ ?& {! e: b6 eTVBNOW 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-$18)( t$ u! u, a9 [, z- Y$ O( f! @, g
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 4 r$ W0 Z7 d, m- z4 f3 g O/ m8 D) 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。
: a* ~& D) d5 ] vTVBNOW 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。 tvb now,tvbnow,bttvb3 z2 h, I- f- G8 e* }% J
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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: c4 g( m! K! mos.tvboxnow.comthink 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.tvb now,tvbnow,bttvb+ b) i( O2 j" E7 n% G
* x8 \8 c! r. ^% `7 G9 F' O) G! J公仔箱論壇I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |