INMO Answer Key 2026 & Solutions PDF

The Indian National Mathematical Olympiad (INMO) is a prestigious mathematics competition for high school students in India. It serves as the third stage of the Homi Bhabha Centre for Science Education (HBCSE) International Mathematical Olympiad (IMO) selection process. Organized annually by HBCSE, the INMO is a crucial step for students aiming to represent India at the International Mathematical Olympiad.

Each year, thousands of students from across the country participate in the INMO exam, but only 30 candidates are selected. These candidates undergo advanced training at the International Mathematical Olympiad Training Camp (IMOTC). After the training, six top-performing students are chosen to represent India at the global level. INMO answer key 2026 pdf download from here :

Indian National Mathematical Olympiad (INMO)

The Indian National Mathematical Olympiad (INMO) is a highly respected math competition in India. Organized every year by the Homi Bhabha Centre for Science Education (HBCSE), it opens doors to the International Mathematical Olympiad (IMO). One of the key moments for participants is the release of the INMO Answer Key 2026, which helps students check their performance. The INMO is the third stage, and only students who excel in the Regional Mathematical Olympiad (RMO) are eligible to appear for the exam.

The INMO is designed to test the mathematical abilities of students with a focus on problem-solving, creativity, and logical reasoning. It covers a broad range of topics including algebra, number theory, geometry, and combinatorics. The problems posed in the exam are highly challenging and require students to think deeply and use advanced mathematical concepts. In this article, we’ll explain everything about the INMO Answer Key 2026

& Solutions, including its release date, importance, how to download it, and how to use it effectively.

What is the INMO Answer Key?

The INMO Answer Key is an official document with correct answers to all the questions in the INMO exam. Released by HBCSE, it helps students:

• Compare their answers.
• Estimate their scores.
• Understand the difficulty level of the exam.

The answer key is usually available in a PDF format on the official HBCSE website.

INMO 2026 Important Dates

For students planning to appear in the INMO Exam Date 2026, it’s essential to stay updated on the key dates related to the exam. Below is a table outlining important dates for the INMO 2026 exam cycle:

INMO Answer Key & Solutions PDF by Aakash Institute

A large number of students who appear for Mathematical Olympiad look for INMO Answer Keys and Solutions. Every year, Aakash  expert faculty create accurate and easy to download INMO answer keys and solutions PDF. Check the answers for INMO right here by downloading the question paper, answer keys and solutions. Once the exam is done, the INMO question paper, answer key and solutions will be updated here. Aakash INMO answer keys and solutions will help students get an idea of their tentative scores so that they can plan well in advance for the next stage. 

Here’s how you can download it from Aakash Institute:

• Visit the Aakash Institute Website: Go to the official website of Aakash Institute.
• Navigate to the Olympiad Section: Find the section dedicated to Olympiads and click on INMO 2026.
• Download the Answer Key: Look for the "INMO Answer Key 2026" link and click to download the file.
• Save the File: Save the PDF to your device and use it to analyze your performance.

By accessing the answer key through Aakash Institute, students can also benefit from expert guidance and solutions provided by experienced faculty members.

How to Download the INMO Answer Key 2026?

Downloading the INMO Answer Key 2026 is simple. Follow these steps:

• Visit the Official Website: Go to the HBCSE website at hbcse.tifr.res.in.
• Go to the INMO Section: Click on the "Mathematical Olympiad" section and find the INMO 2026 link.
• Find the Answer Key: Look for the "INMO Answer Key 2026" link in the announcements or resources section.
• Download the File: Click the link to download the PDF file.
• Save and Print: Save the file to your device and print it if needed.

Stages of IMO

A detailed overview of the International Mathematical Olympiad (IMO) journey, starting from the preliminary stages and advancing to the final competition. Each stage represents a crucial step in the selection and preparation process for students aspiring to represent their country at the IMO. Here's an explanation of each stage:

Stage 1: Indian Olympiad Qualifier in Mathematics (IOQM)

• Purpose: The first step in the selection process.
• Format: The exam consists of questions where the answers are integers between 00-99.
• Objective: This stage is designed to test a student's fundamental understanding of mathematics and problem-solving skills.

Stage 2: Regional Mathematical Olympiad (RMO)

• Purpose: The second level, conducted at a regional scale across India.
• Format: Includes descriptive questions that require detailed written solutions.
• Objective: Evaluates the ability to solve complex mathematical problems and provides a deeper insight into a student's reasoning and analytical skills.

Stage 3: Indian National Mathematical Olympiad (INMO)

• Purpose: A nationwide exam that is highly competitive.
• Format: Comprises descriptive questions of a challenging level.
• Objective: Identifies the top-performing students who will advance to further training and represent India at the international level.

Stage 4: IMO Training Camp (IMOTC)

• Purpose: A rigorous training session for students who qualify from the INMO.
• Activities:
  • Lectures: Delivered by experts in advanced mathematical concepts.
  • Problem-solving sessions: To hone students' skills and improve their performance under timed conditions.
• Objective: Prepares students for the IMO by focusing on key areas like algebra, geometry, number theory, and combinatorics.

Stage 5: Pre-Departure Camp (PDC)

• Purpose: A final stage of preparation before the international competition.
• Activities:
  • Advanced lectures and problem-solving sessions.
  • Simulated practice tests to mimic the environment of the IMO.
• Objective: Ensures that the selected students are fully equipped to compete on the global stage.

Stage 6: International Mathematical Olympiad (IMO)

• Purpose: The final and most prestigious stage in the Olympiad journey.
• Format: A global problem-solving competition where participants from different countries solve highly challenging problems over two days.
• Objective: To assess creativity, depth of understanding, and problem-solving ability at the international level.

INMO 2026 Exam Format

Understanding the structure of the INMO exam is key to performing well. Here is a breakdown of the exam format:

• Number of Problems: The INMO typically consists of 6 problems.
• Duration: Students are given a total of 4.5 hours to solve all the problems.
• Type of Problems: The problems are descriptive and require detailed written solutions (Pen & Paper Mode). Each problem demands logical reasoning, creativity, and a deep understanding of mathematical concepts.
• Maximum Marks: The exam is usually out of 102 marks.
• Difficulty Level: The questions are advanced and require a strong grasp of high-level mathematics, often comparable to undergraduate-level problems in Algebra, Plane Geometry, Combinatorics & Number Theory.

INMO Exam Pattern

How to Use the INMO Answer Key to Check Scores?

Once you download the INMO Answer Key 2026, follow these steps to estimate your score:

• Understand the Marking Scheme: Refer to the question paper to know how marks are assigned for each question.
• Match Your Answers: Compare your answers with those in the answer key.
• Calculate Your Score: Add up the marks for the questions you got correct. Consider partial marking if it applies.
• Analyze Your Performance: Identify your strengths and areas where you need improvement.

Key Benefits of the INMO Answer Key 2026

• Self-Evaluation: The answer key enables students to cross-check their responses and calculate their estimated scores. This gives them a clear idea of how they performed in the exam.
• Learning Tool: The solutions provided in the answer key are often detailed, showing the correct methods and logical steps to solve each problem. This helps students learn from their mistakes and improve their mathematical skills.
• Preparation for Future Stages: For students who qualify for the next stage, the International Mathematical Olympiad Training Camp (IMOTC), the answer key serves as a valuable resource to identify areas where they need to improve.
• Transparency in the Evaluation Process: By providing the correct answers and detailed solutions, the answer key ensures transparency in the evaluation process, allowing students to understand how their responses will be graded.

How to Use the INMO Answer Key 2026?

Here’s a step-by-step guide to effectively using the INMO Answer Key 2026:

• Download the Answer Key: Ensure that you have downloaded the correct answer key for the INMO 2026 exam.
• Compare Your Answers: Go through each question and compare your answers with the correct solutions provided in the answer key.
• Partial Marks: If your solution is not entirely correct, check if partial marks are awarded for the steps you attempted correctly.
• Estimate Your Score: After reviewing your answers, calculate your estimated score. Keep in mind that the official evaluation may differ slightly, especially if partial credit is given for incomplete solutions.
• Identify Mistakes: Take note of any mistakes or incorrect approaches you used. This will help you avoid similar errors in future exams and stages of the Olympiad.
• Learn from the Solutions: Study the correct methods provided in the answer key and understand why they work. This is a great opportunity to enhance your mathematical problem-solving skills.

How to Prepare for INMO 2026?

Preparing for the INMO requires dedication, practice, and a strong foundation in advanced mathematical concepts. Here are some tips to help you prepare effectively for the exam:

• Understand the Syllabus: The INMO covers topics such as algebra, number theory, geometry, and combinatorics. Make sure you have a solid understanding of these subjects.
• Solve Previous Year Papers: Solving past INMO papers is one of the best ways to prepare for the exam. It helps you get familiar with the types of questions asked and the level of difficulty.
• Practice Olympiad-Level Problems: Since the INMO problems are highly challenging, it’s important to practice Olympiad-level problems from books such as Challenges and Thrills of Pre-College Mathematics and Mathematical Circles.
• Join Olympiad Training Programs: Several coaching institutes offer specialized training programs for the INMO. These programs provide expert guidance, study materials, and mock tests to help you prepare effectively.
• Focus on Problem-Solving Skills: The INMO requires a creative and analytical approach to problem-solving. Focus on improving your problem-solving skills by attempting challenging problems and learning different techniques.

INMO 2026 Results

The results of INMO 2026 are expected to be announced in March 2026 (Tentative). Students who perform well in the exam will be invited to attend the International Mathematical Olympiad Training Camp (IMOTC), where they will undergo rigorous training to prepare for the International Mathematical Olympiad (IMO) 2026.

INMO Answer Key 2026 & Solutions PDF FAQs

Q1. When will the INMO Answer Key 2026 be released?

Answer: The INMO Answer Key 2026 is expected to be released on January 26, 2026 by official website a week after the exam date. And INMO Answer key released by Aakash 18 January 2026.

Q2. Where can I download the INMO Answer Key 2026 & Solutions?

Answer: You can download the official INMO Answer Key from the HBCSE website under the "Mathematics Olympiad" section.

Q3. Can I challenge the INMO Answer Key 2026?

Answer: No, the INMO answer key is final, and there is no provision to challenge the solutions provided by HBCSE.

Q4. How can the INMO Answer Key & Solutions help me in my preparation?

Answer: The INMO Answer Key allows you to cross-check your responses, estimate your scores, and learn from the detailed solutions to improve your problem-solving skills.