Answer:
Explicit costs are the costs which requires the money to pay.
On the other hand, implicit costs refers to the benefit that is foregone by choosing some other work or doing some other activity.
Therefore,
Explicit costs are as follows:
1. Wages pays to his hired hand
2. Buys feed for his cows.
3. Gas expense that is used in truck
Implicit costs are as follows:
1. Foregone income of $27,000 from working at a dairy plant as a technician.
2. Time taken for extracting milk from all the cows.