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INMO — Indian National Mathematical Olympiad

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INMO — Indian National Mathematical Olympiad

Olympiad practice — algebra, number theory, combinatorics, geometry

20-question mock25 min— pass markIndia

Single questions with instant feedback — no timer, learn as you go.

Exam blueprint

What this exam covers

6 topics · drawn across your practice and mock
01Number Theory
35%7 questions
02Algebra and Inequalities
20%4 questions
03Combinatorics
15%3 questions
04Geometry
10%2 questions
05Functional Equations
10%2 questions
06Polynomials
10%2 questions
Your study path
Master this exam, topic by topic
Drill one topic at a time. After each session you'll see where you went wrong and can retake until you've got it.
Questions per session
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Official source
HBCSE Olympiads
The Indian National Mathematical Olympiad is conducted by HBCSE.
AceMark is an independent practice tool, not affiliated with the exam authority. Always confirm the current syllabus, fees and dates on the official site.
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Frequently asked questions

Is the INMO — Indian National Mathematical Olympiad practice test free?

Yes. The core INMO — Indian National Mathematical Olympiad practice on AceMark is free to start — no credit card needed. Sign in (takes 10 seconds) if you'd like to track your progress, save attempts, and unlock the Mentor. Otherwise, browse and explore questions without an account.

How many questions are in the INMO — Indian National Mathematical Olympiad quiz?

Each INMO — Indian National Mathematical Olympiad attempt draws 20 questions and runs for about 90 minutes under realistic timed conditions.

Can I retake the INMO — Indian National Mathematical Olympiad test, and are the questions randomised?

Yes. Every attempt pulls a fresh, randomised set of questions, so you can't memorise your way through — you retake it until you genuinely know the material.

What score do I need to pass the INMO — Indian National Mathematical Olympiad?

The pass mark used in this simulation is —. AceMark scores every attempt instantly and shows which topics to review.