- A balance is used for measuring the mass of an object
- A balance is a kind of tool
- Therefore, a balance is a kind of tool used for measuring the mass of an object

Hence, a balance is a kind of tool used for measuring the mass of an object
Q: Which tool is used to determine the mass of an object?
Context:
- A balance is used for measuring the mass of an object 
- A balance is a kind of tool