原帖由 prozzy 於 2007-5-18 23:05 發表。 4 A" ?5 w# A! {4 h c6 F
the answer is -$97 for sure.
8 q5 E* |( I- d' d& _Think about it this way 5.39.217.76( Y% z9 T9 s1 }
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
+ J6 P5 u$ l2 y$ @$ P* C! Y) |) |) M! ?# ~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。2) Now, the owner discovered that the 100 bucks is fake. You can th ... 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。) Z1 \3 P3 i, b" V* r
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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 wrong( ^: F) @8 Z5 L8 {% W0 c
6 x; f4 K. _0 Z- V" Ithink 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.
7 D: k; V V& G2 T, O' m ~tvb now,tvbnow,bttvb 5.39.217.76+ x' X, Y' U' ~" J/ g1 B- l0 ?1 }
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |