It depends on what the problem is. Losing weight is not a problem, but what kind of problem is designed for this topic.

For example:

1 and 100 kg lose weight by 10%. What is the weight after losing weight?

This is a mathematical problem.

2. Losing weight requires consuming fat. What substance does fat oxidation produce?

This is a chemical problem.

You can also design biology questions, physics questions, Chinese questions and English questions. . .