IMO Class 11 — Mathematics
Key Class 11 topics: Sets, Relations and functions, Trigonometric functions, Complex numbers and quadratic equations, Linear inequalities and more.
2026–27 · 3 olympiads
Olympiads for Class 11: IMO, IEO, NSO
A Class 11 student can sit 3 SOF olympiads this year. Compare the exam patterns below, open the class-wise syllabus for each, and practise with free tests and full-length mock exams that give an instant all-India rank.
Class 11 olympiad exam patterns at a glance
| Olympiad | Subject | Questions | Duration | Level 2 | Level 1 dates |
|---|---|---|---|---|---|
| IMO | Mathematics | 50 | 60 min | Yes | Oct 22 / Nov 19 / Dec 10, 2026 |
| IEO | English | 55 | 60 min | Yes | Sept 24 / Oct 20 / Nov 5, 2026 |
| NSO | Science | 60 | 60 min | Yes | Oct 15 / Nov 12 / Dec 3, 2026 |
No SOF olympiad has negative marking. Dates are tentative — see exam dates and confirm with your school.
IEO Class 11 — English
Key Class 11 topics: Advanced grammar and usage, Sentence correction, Advanced vocabulary and word roots, Idioms, phrasal verbs and collocations, Analogies and more.
NSO Class 11 — Science
Key Class 11 topics: Physics: units, measurement and kinematics, Physics: laws of motion, work, energy and power, Physics: rotational motion and gravitation, Physics: properties of matter, thermodynamics and kinetic theory, Physics: oscillations and waves and more.
Class 11 olympiads — frequently asked questions
Which olympiads can a Class 11 student take?
Class 11 students can take the IMO, IEO and NSO. Each is a separate exam on a different date.
Which olympiad is best for Class 11?
Start with the subject your child enjoys most. Many Class 11 students take IMO and NSO, with IEO for English once they are comfortable with the format.
Can a Class 11 student appear for more than one olympiad?
Yes. The olympiads are held on different dates, so students commonly take two or three in one year.
Is there a Level 2 for Class 11?
Yes, for IMO, IEO, NSO. Top Level 1 performers qualify for the second round.
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