原帖由 prozzy 於 2007-5-18 23:05 發表。 
7 A% N3 ?, B8 m& O* c& X/ kTVBNOW 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.
7 B3 e- N# l7 I, Z" T( `) Lwww2.tvboxnow.comThink about it this way tvb now,tvbnow,bttvb! C7 ~: U) a. f& N: N2 X# o" @! x- i; c
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
0 b7 o. b5 e, l" I+ [4 W. PTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。2) Now, the owner discovered that the 100 bucks is fake. You can th ... 公仔箱論壇$ G: ?: {' J' @ \
5 g9 u. V( k$ i; x% f6 ~5 F
, ^& Z( i& p$ ttvb now,tvbnow,bttvb1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
4 M# m+ }3 r* {1 }7 o8 r. o' X1 g公仔箱論壇 tvb now,tvbnow,bttvb3 L, S- |6 R, L, L- k: l# X
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.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。7 u; z( h1 `. S; R2 ~& C5 C6 ]
( c8 t2 a9 P9 u% m" D" g
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |