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。& s- ^! I- c( ^) V9 l) E% Q z7 B
the answer is -$97 for sure. os.tvboxnow.com3 {- V6 n. ]4 A
Think about it this way
6 T$ _4 C2 w) [3 O9 j1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
$ W4 K6 B9 m0 i Y3 g' J公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ... ; X. @2 P4 C: T- z公仔箱論壇
; t) s1 ?+ f" U$ P* S; wTVBNOW 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。
. D* z3 T& @8 w2 r% A* s0 m% f公仔箱論壇1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
7 y! G8 h* H5 z F0 Vtvb now,tvbnow,bttvb os.tvboxnow.com! U' W0 g: l& O+ f- _( a+ k: f. y
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.tvb now,tvbnow,bttvb* x$ g* K3 H' v% O I8 z
/ m. |" s; ]+ c) }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。I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |