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。+ B6 Y1 b+ w% L/ b5 `) V
the answer is -$97 for sure.
0 }$ X0 n# |+ l" S; [tvb now,tvbnow,bttvbThink about it this way
" m% J* a1 q2 Z& 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。1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)8 j& b2 Q! ~0 S9 z4 k
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 9 |# Y+ i' D7 Q8 t公仔箱論壇
% X5 j( H# ^' x, J公仔箱論壇
' e% F9 j" p. n7 F1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong1 Q8 c0 `3 _" _+ r. I
% r8 n% T9 O: t. pthink 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.: z" O2 ~8 A& k
, P: L) l6 \( X$ d) D) U8 H5.39.217.76I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |