the answer is -$97 for sure. 5 B i* @ x" t" ~5 P4 W0 ~
Think about it this way TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。7 }+ d9 U6 r$ ?& a* v3 V+ @5 q6 b% w
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18) 2 r5 o: G' o# n4 a O8 X$ bwww2.tvboxnow.com2) Now, the owner discovered that the 100 bucks is fake. You can think this as a lost of $100. therefore the overall gain is $3-$100 = -$97
發表於 2007-5-16 03:12 AM
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發表於 2007-5-19 03:21 PM
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發表於 2007-5-21 03:49 AM
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