原帖由 prozzy 於 2007-5-18 23:05 發表。 公仔箱論壇: x$ V" G7 W: H$ \5 E. _. I) k
the answer is -$97 for sure. tvb now,tvbnow,bttvb3 ^# P! Z: W& `! Z( P: w
Think about it this way tvb now,tvbnow,bttvb+ g. l$ D, f4 @1 s
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
- i, k* f h# u, t. t$ H2) Now, the owner discovered that the 100 bucks is fake. You can th ... 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 f& G, ?1 b3 R; r% n+ j! M' `
tvb now,tvbnow,bttvb; K6 A3 ?% `" H* p% A: Q/ _' G ~) i
* o: m5 z5 z9 l' `7 k0 ^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。1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong5.39.217.77) A( d; Z3 g( ], W5 \7 W
5.39.217.77 v% n5 C; C* A) h8 d
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
9 B2 E) O, A* y/ p+ U: H5.39.217.77
/ X. { O$ J% c% x4 ]9 w* `, ~+ P$ b, Ftvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |