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。/ T6 |+ N U/ D( T& Q/ O; K9 \
the answer is -$97 for sure.
8 T* p. _9 w3 o; Q! HThink about it this way 5.39.217.76$ W6 m) j: ~. @7 q# B8 x& i
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
- k0 A- m% _& J' O5 U' {' i2) Now, the owner discovered that the 100 bucks is fake. You can th ... 7 T( S8 L8 E' E7 @. W; t, Z
% r/ {, h9 |. X7 [$ \: {! nTVBNOW 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。 " o, E/ d' x/ x0 x2 O0 T
1) 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。 b/ Q# [+ k, r& y0 {" h* }
6 `; P" N! b4 i4 Zthink 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.
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* u: j. N9 N2 U7 E' E( U- F7 ktvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |