Short Answer 
The farmer’s farm has a total of 20 feet from various animals: 3 horses contributing 12 feet, 2 ducks adding 4 feet, and 1 pig with 4 feet. The combined feet from all animals results in a final total of 20 feet.
Step 1: Identify the Animals and Their Feet
First, we need to list out the types of animals on the farmer’s farm along with the number of each type. The animals include:
- 3 horses – Each has 4 feet.
- 2 ducks – Each has 2 feet.
- 1 pig – It has 4 feet.
Step 2: Calculate Feet for Each Animal Type
Next, we will calculate the total number of feet for each type of animal by multiplying the number of animals by the feet per animal:
- Horses: 3 horses * 4 feet/horse = 12 feet
- Ducks: 2 ducks * 2 feet/duck = 4 feet
- Pig: 1 pig * 4 feet/pig = 4 feet
Step 3: Find the Total Number of Feet
Finally, we will sum all the calculated feet from each animal type to determine the total number of feet on the farm:
- Total = 12 feet (from horses) + 4 feet (from ducks) + 4 feet (from pig)
- So, the final total = 20 feet.
This means there are 20 feet on the farmer’s farm in total.