Best Teacher for all subjects:

Maths: Gagan/Bhutesh/Maths Mania

Reasoning: Piyush Varshney / Saurav Singh Adda 247

English Grammar: Aman Sir
Vocab: Ek dum basic youtube channel

GS : Parmar Sir
Static: Parcham Classes

Computer: Arora Educator

Typing: Eztyping website

SSC Maths – Chapter-wise Weightage

Mensuration — 1,156 Questions — 16.52%
Geometry — 1,035 Questions — 14.78%
Profit & Loss — 815 Questions — 11.64%
Trigonometry — 520 Questions — 7.43%
Number System — 464 Questions — ≈6.63%
Simplification — 435 Questions — 6.22%
Interest — 400 Questions — 5.71%
Average — 383 Questions — 5.47%
Time & Work — 328 Questions — 4.68%
Percentage — 300 Questions — 4.29%
Speed, Time & Distance — 293 Questions — 4.19%
Algebra — 270 Questions — 3.85%
Ratio & Proportion — 236 Questions — 3.37%
Mixture Problems — 220 Questions — 3.14%
Progression — 22 Questions — 0.31%
Elementary Statistics — 15 Questions — 0.21%
Probability — 15 Questions — 0.21%
Standard Deviation — 13 Questions — 0.18%
Problem on Age — 11 Questions — 0.15%
Permutation & Combination — 7 Questions — 0.10%

Total Estimated Questions: 6,938
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Highest Weightage Chapters:
• Mensuration — 16.52%

Mensuration -- 16.52%

•Geometry — 14.78%
•Profit & Loss — 11.64%
• Trigonometry — 7.43%
• Number System — ≈6.63%
• Simplification — 6.22%

These top chapters alone account for ≈50.37% of the estimated questions.
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FOR ENGLISH GRAMMAR

Step 1. Watch Aman Sir lectures
Step 2. Write extra info in plinth to paramount book itself
Step 3. Solve that chapter's Question from book or testbook chapter wise mocks
Step 4. Mark every mistake and write it down
Step 5. Revise rules from your mistakes
Step 6. If you have completed 2-3 chapters do mixed questions practice
Step 7. Sectional tests

This is free playlist of English Grammar

https://youtube.com/playlist?list=PLsMCL_P04son8TfEuCbNKln30HjsXg8Fo&si=1xJ-aZN3mOfFrpOs