Answer:
$91,000
Explanation:
Purple has a gain of $91,000
= $245,000 - $154,000 = $91,000
($245,000 liability treated as fair market value –$154,000 basis)
NB: If property is subject to a liability(mortgage) over its basis, for purposes of determining gain on the property, the fair market value of the property is treated as being not less than the amount of the liability(mortgage).