the answer is -$97 for sure.
! W6 g7 ^! m4 o& e$ t. Yos.tvboxnow.comThink about it this way
; A# L7 P8 S8 E! [$ }; Cos.tvboxnow.com1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
" Q" c8 z" V) k, \4 g) W2) 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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