the answer is -$97 for sure.
5 g9 l6 b' N- {7 n atvboxnow.comThink about it this way
" t/ K: c) e; @2 h/ @1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb' P5 y: u7 [" p" ^$ k: w
2) 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 |