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。9 A% r/ `& t$ A( ^
the answer is -$97 for sure. 5.39.217.76' _8 U+ ?' V5 v0 X- J. I; k1 C
Think about it this way 5.39.217.76( w7 e) q$ {, k# E8 p+ p+ ^7 E
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
( h) ]" O$ N1 Q% 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。2) Now, the owner discovered that the 100 bucks is fake. You can th ... 5 H+ h/ ?& H+ s5.39.217.76
0 `" B) S! ]! s; Z' D公仔箱論壇 5.39.217.76- o) c3 z# z( J1 o8 V/ ]
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong& L* V. i& g0 _' v, x+ G# R3 C8 @
; l) `4 z5 Z* p$ H& q* V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.tvb now,tvbnow,bttvb0 l- z) r* |; ^
. z4 T& D( \# a8 e" {% QTVBNOW 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. |