Final answer:
The carrying amount of the robot on January 1, 2021 is $15,000.
Step-by-step explanation:
The carrying amount of an asset is calculated by subtracting the accumulated depreciation from the cost of the asset.
In this case, the cost of the robot is $60,000 and it has a remaining useful life of 4 years on January 1, 2021.
The straight-line depreciation expense per year would be ($60,000 - $10,000) / 10 = $5,000.
So, the accumulated depreciation on January 1, 2021 would be $5,000 x (2021 - 2018) = $15,000.
The fair value of the robot on January 1, 2021 is $31,000 with costs to sell of $1,000. Therefore, the carrying amount of the robot on January 1, 2021 would be $31,000 - $1,000 - $15,000 = $15,000.