From the above given tables you can easily conclude the types of questions and their sources.
The numerical questions are medium and difficult level in chemistry. Here we infer that numerical in chemistry should be practiced well focussing on medium and difficult levels. In physics, numerical questions are average level. The questions in maths , numerical questions are easy and average.
But in chemistry you can see the variation in the number of questions.
Symbol used E=easy
A=average
D=difficult
Chapter wise analysis physics JEE Mains 2020