Question 1

How to calculate RPF SI (Sub Inspector)  marks?

Accepted Answer

Paste your official response sheet URL from the RRB website into QMaths calculator. Select your category and RRB zone. The tool applies +1 for correct and -1/3 for incorrect answers automatically.

Question 2

What is the marking scheme for RPF SI (Sub Inspector)?

Accepted Answer

Each correct answer carries +1 mark and each wrong answer carries -1/3 marks (1/3 negative marking). Total: 120 questions, 120 marks.

Question 3

How is zone-wise rank calculated?

Accepted Answer

QMaths shows your estimated rank among candidates who selected the same RRB zone. This helps predict your zone-wise chances since cut-offs vary by zone.

Question 4

What are the RRB zones for RPF SI (Sub Inspector)?

Accepted Answer

There are 21 RRB zones across India: Ahmedabad, Ajmer, Allahabad, Bangalore, Bhopal, Bhubaneswar, Bilaspur, Chandigarh, Chennai, Gorakhpur, Guwahati, Jammu, Kolkata, Malda, Mumbai, Muzaffarpur, Patna, Ranchi, Secunderabad, Siliguri, and Thiruvananthapuram.

Question 5

Is RPF SI (Sub Inspector) score calculator free?

Accepted Answer

Yes, completely free. No login or payment needed.

Question 6

Does QMaths show category-wise rank for RPF SI (Sub Inspector)?

Accepted Answer

Yes. Select your category (UR/OBC/EWS/SC/ST) and the tool shows your overall rank as well as category-wise rank within your RRB zone.

Question 7

Is QMaths affiliated with Indian Railways or RRB?

Accepted Answer

No. QMaths is an independent platform. Official results are declared only by Railway Recruitment Boards.

Question 8

What if my answer key URL is not working?

Accepted Answer

Make sure you're copying the full URL from the browser (it should start with https://). If the URL contains special characters, QMaths URL Doctor will try to auto-fix common issues.

RPF SI (Sub Inspector) 2025 — Score Calculator

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