原帖由 prozzy 於 2007-5-18 23:05 發表。  tvb now,tvbnow,bttvb# \$ F5 I; X# Y2 {$ z; i) B& k: g
the answer is -$97 for sure.
" L) W7 ]0 s V8 W7 y- Ctvb now,tvbnow,bttvbThink about it this way
) n" ~* F: I( ^/ Q! J* ]) u% n1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb7 p) o T! A0 @7 g3 X
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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* y0 I3 G9 F+ w) @3 m% M( U- Lwww2.tvboxnow.com1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongwww2.tvboxnow.com) ]2 ^' x5 \, N+ o# }4 n0 F
7 ~8 B& m( D' T* G" N2 I% \2 b$ C5 otvb now,tvbnow,bttvbthink 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.
+ C9 {; \( K! X, V8 I! ktvb now,tvbnow,bttvb
* K: U; a% s( _8 PI 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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