Question

There are 7 animals in the barn. Some are chickens and some are oxen. There are 20 legs in all. How many of each animal are there? (Please show all work)

Answer 1

4 Chickens, 3 Oxen

Explanation:

Given:

• 7 animals
• 20 legs total

Known:

• Chickens have 2 legs
• Oxens have 4 legs

Solution:

• 4 Chickens have a total of 8 legs (2 + 2 + 2 + 2)
• 3 Oxen have a total of 12 legs (4 + 4 + 4)
• There are a total of 20 legs in total between the chickens and oxens.