原帖由 prozzy 於 2007-5-18 23:05 發表。 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。; p& N) X! z R6 D& Z; ?4 b
the answer is -$97 for sure.
2 P) F' P+ e3 B. x4 e2 `- Xtvb now,tvbnow,bttvbThink about it this way
: a3 q0 W- s% W. x! z) a. ]3 Z1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
: X) {$ C! j( Q8 K0 z6 i/ z5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ... 9 P8 P6 @ ?+ y$ W" x* |' `
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1 D9 T: o0 [" o+ u/ V+ C6 A1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongTVBNOW 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。, O4 L: G! y+ o# S( f$ s7 f; s
* W- \& u; x3 T3 U3 K/ J X公仔箱論壇think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.公仔箱論壇8 P' J7 O4 M) A( G. t( i1 V
tvb now,tvbnow,bttvb! i! u9 i* l) T: R1 I' s$ `
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |