Answer:
Determine the minimum amount for which the non-cash assets must have been sold, in order for quincy to receive some cash from the liquidation:
Total non-cash assets = 300,000
Less: Balance needed from non-cash assets = 95,000
($90,000 - $15,000 - $170,000)
Adjusted non-cash assets = 205,000
Less: Liquidation expenses = 15,000
Balance of non-cash assets = 190,000
Hence, the the minimum amount for which the non-cash assets must have been sold, in order for quincy to receive some cash from the liquidation would be any amount in excess of $190,000.