ABC Ltd owns an asset that can be traded in four different locations, Markets 1 to 4. The number of trades in markets 1 to 4 are 38 trades, 33 trades, 30 trades and 40 trades respectively. The price of the asset in each of the markets is $32, $28, $25 and $31 respectively. The transaction cost in each of the markets is similar at $3. The transport cost is in each of the markets is $4, $4, $2 and $2 respectively. What is the fair value of this asset?
$31
$29
$28
$24