原帖由 prozzy 於 2007-5-18 23:05 發表。  公仔箱論壇, O# j6 M: b9 V- j3 ^- D/ C* m
the answer is -$97 for sure.
3 K8 k* f5 D( }公仔箱論壇Think about it this way
/ ^7 J$ u/ h3 u( }. n8 @: 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。1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb5 l, d3 k1 J3 D5 @% H# b+ \* H! ^& j
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
0 ]+ z/ b: \8 n公仔箱論壇 TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。: N# m5 g6 _4 {; P( `/ C; c1 L7 u0 V* m
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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4 i* }8 A# Y; D$ _- @' T& L$ othink 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.5.39.217.77:88989 }5 z5 p( L# P; r% z) z5 p, R3 {5 o
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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. |
發表於 2007-7-10 05:18 PM
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發表於 2007-7-11 03:19 PM
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