Answer:
$102,000
Explanation:
According to 26 US code Section 704(c) - Partner's distributive share :
Taxable gain to be recognized from sale = Sale value - ( Partner's share * Fair market value )
Brooke contributed the land, the gain realized before the land was contributed = $120,000 - $90,000 will be allocated entirely to her. She will also be allocated 40% of the gain after the contribution was made = ($150,000 - $120,000) x 40% = $30,000 x 40% = $12,000.
So the total gain recognized by Brooke will be $90,000 + $12,000 = $102,000.
Partnerships are pass through entities, the partners are taxed, not the partnership itself.