Prelims Strategy
RAS Prelims Marks Calculator
Calculate your net prelims marks using the real negative-marking formula, or simulate how many questions you should attempt at your current accuracy level.
Last updated: April 10, 2026
Quick answer
The official 2026 prelims syllabus shows a 200-mark paper with 150 equal-mark questions. That makes each correct answer worth 1.33 marks, while each wrong answer deducts 0.33 marks. Use Actual Score mode if you know your correct and wrong answers. Use Safe Attempt Simulator if you are planning exam-day behavior.
Actual score result
Net prelims marks
101.33
Accuracy 77.4% · Attempted 106 of 150
Scoring logic used here
This tool is intentionally simple. It keeps the scoring model visible so aspirants can reason about accuracy and attempts instead of trusting a hidden number.
Per correct answer
+1.33 marks
Per wrong answer
-0.33 marks
Total paper size
150 questions / 200 marks
Related next steps
Practice flow
Take a full RAS mock test
Use the actual mock flow if you want a timed exam simulation with detailed analysis instead of only a score formula.
Study action
Practice more MCQs before pushing attempts higher
If the simulator keeps landing in the caution band, improve accuracy first through focused topic practice.
FAQ
What negative-marking formula does this tool use?
It uses the official 2026 prelims syllabus basis we could verify: 150 objective questions carrying equal marks across a 200-mark paper, with 1/3 mark deducted for each wrong answer.
What is the difference between Actual Score and Safe Attempt Simulator?
Actual Score is for when you already know your correct and wrong answers. Safe Attempt Simulator is for exam strategy: you enter attempts and expected accuracy to see what that behavior is likely to produce.
Why does the simulator return a recommended attempt range instead of one perfect number?
Because safe attempts depend on accuracy, not bravado. A range is more honest than pretending one magic number applies to everyone.