原帖由 prozzy 於 2007-5-18 23:05 發表。 ( Y! ?3 q" s& ?1 I/ m
the answer is -$97 for sure.
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1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
$ h' B: r4 I; s5 n- j2) Now, the owner discovered that the 100 bucks is fake. You can th ... ' f+ x( H' E8 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。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。, Y1 J/ f, E3 V2 g
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongwww1.tvboxnow.com- }4 I1 O0 v5 O, u
; C5 Q* ~- A1 Q- l4 y, P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.
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I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |