Answer:
$30,000
Step-by-step explanation:
Data provided in the question
Contributed value of building = $650,000
Andrew basis of building = $400,000
Mortgage amount as a part of the transfer = $370,000
So according to the section 351, the amount of Andrew basis received from the corporation is
= Andrew basis of building - Mortgage amount as a part of the transfer
= $400,000 - $370,000
= $30,000