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1. The Post-2024 Syllabus Reduction Shift
NTA removed 9 entire chapters in Chemistry (States of Matter, Solid State, Surface Chem, Hydrogen, s-Block, Metallurgy, Polymers, Everyday Life, Environmental Chem) and major topics in Physics (Communication Systems, Transistors, Potentiometer) and Math (Reasoning, Induction).
The Mathematical Reality: The exam still contains 30 questions per subject! The questions that previously belonged to deleted topics migrated to high-yield survivors like Coordination Compounds (7.8%), GOC (8.5%), Current Electricity (7.5%), and Vectors & 3D (11.7%).
โ ๏ธ 2. Why Older Websites Show Different Numbers
Generic platforms (e.g. Careers360, old coaching blogs) calculate weightages using a 10-to-15 year legacy average (2013-2023). They still assign 4% to s-block and 3.3% to Mathematical Reasoning. Following those older lists wastes up to 150 hours studying concepts that NTA will not test in JEE 2027.
๐ 3. Shift-by-Shift Verification Formula
Data verified across 20 official multi-shift papers (10 Jan + 10 April shifts) from 2024/2025:
Sample = 20 Shifts ร 30 Questions = 600 Questions / Subject
Weightage % = (Average Qs per Shift รท 30) ร 100%
Cross-referenced with MathonGo MARKS App shift archives, Allen Career Institute paper solutions, and Resonance post-exam metrics.