IMO Answer Key 2026-27 - Set A, B & C Solutions and Release Dates
FAQs on SOF IMO Answer Key 2026-27 for Classes 1 to 12 - Download PDF
1. When will the SOF IMO Answer Key 2026-27 be released?
The SOF IMO Answer Key 2026 will be released after the respective Set A, Set B and Set C examinations. Based on the current schedule, Set A and Set B answer keys are expected in December 2026, while Set C is expected in January 2027. Students should check the official SOF answer-key section for the final release dates.
2. Where can I download the IMO Answer Key 2026?
Students can download the IMO Answer Key 2026 from the official Science Olympiad Foundation website once it is released. SOF publishes the answer keys separately for each exam set and provides class-wise PDF links for Classes 1 to 12.
3. Is the IMO 2026 Answer Key the same for all classes?
No. The IMO 2026 Answer Key is class-specific. SOF publishes separate answer keys for Classes 1 to 12 and also separates them by exam set - Set A, Set B and Set C. Students must use the answer key matching both their class and question-paper set.
4. Are Set A, Set B and Set C IMO answer keys different?
Yes. Set A, Set B and Set C are different exam papers, so each has its own answer key. Students should not use an answer key from another set to calculate their expected score.
5. How can I calculate my score using the IMO Answer Key 2026?
Compare each marked response with the official answer key and apply the class-wise marking scheme. For Classes 1 to 4, questions in the first three sections carry 1 mark each and Achievers Section questions carry 2 marks each. For Classes 5 to 12, the first three sections carry 1 mark per question and Achievers Section questions carry 3 marks each.
6. Is there negative marking in SOF IMO 2026-27?
No negative marking is applied in the SOF IMO marking scheme. Therefore, students calculate their expected marks by adding the marks obtained for correct responses without deducting marks for wrong answers.
7. What is a good score in SOF IMO 2026-27?
There is no single score that can be considered good for every class. The qualifying level varies according to the class, paper difficulty and overall student performance. As a reference, the previous 2025-26 top 5% Level 1 cut-offs ranged from 30 to 46 marks across Classes 3 to 12, but the 2026-27 cut-off may be different.
8. Can the IMO answer key tell me whether I have qualified for Level 2?
The answer key can help you estimate your score, but it does not confirm Level 2 qualification by itself. Students must wait for SOF to release the official Level 1 result and qualification cut-off. Level 2 qualification depends on SOF's class-wise, zonal and school-level criteria.
9. When will the IMO 2026-27 cut-off be released?
The IMO Level 1 cut-off for 2026-27 is expected after the Level 1 exam cycle and is likely to be released around January 2027. Until then, students can use the previous year's cut-off only as a reference.
10. Can I challenge or raise an objection to the IMO Answer Key 2026?
Students should follow the official SOF instructions published along with the SOF IMO Answer Key 2026-27. If SOF provides a correction, query or review mechanism for the current cycle, students should use only that official process. Until such instructions are published, students should not assume that a formal objection window will be available.
11. What should I do if I think an IMO answer key response is incorrect?
First, confirm that you are checking the correct class, set and academic year. Then compare the question carefully with the official SOF PDF. If you still believe there is an issue, follow any clarification or contact process announced by SOF for the 2026-27 cycle.
12. Does matching the previous year's cut-off guarantee Level 2 qualification?
No. Previous-year cut-offs are only indicative. The SOF IMO 2026-27 cut-off will depend on the current year's exam difficulty, student performance and SOF's final qualification rules.
13. Which IMO answer key should I use if my school appeared on the second exam date?
Students who appeared on the second Level 1 exam date should use the answer key corresponding to Set B, provided their question paper is identified as Set B. Always confirm the set printed on the question paper instead of relying only on the exam date.
14. Can I use the answer key to calculate my International Rank?
No. The answer key can help estimate your marks, but it cannot accurately predict your International Rank, Zonal Rank or School Rank because ranks depend on the performance of all participating students and SOF's ranking rules.
