Before the CBSE Class 12 Mathematics Board Exam on March 7, 2026, EDII AI generated 483 predicted questions covering all 13 topics in the syllabus — from Relations and Functions to Probability. After the exam, we rigorously compared these predictions against the actual paper (65/1/1) to evaluate our prediction accuracy.

The Bottom Line

Across 38 exam questions (with OR choices), our AI predictions matched 73% of the questions that appeared. We found 22 strong matches — questions where practising our prediction would directly prepare a student for the exam question — and 6 moderate matches. All 13 syllabus topics were covered by our prediction bank, achieving 100% topic coverage.

Key Numbers at a Glance

73% Questions Matched
22 Strong Matches
28/38 Exam Questions Matched
483 Questions Predicted
13/13 Topics Covered

How We Tested

To ensure an honest, rigorous evaluation, we applied a strict question-matching audit across all 13 mathematics topics. Each of our 483 predictions was compared against the 38 exam questions by topic, method, and difficulty level. Each match was graded as:

  • Strong Match (3+ predictions found): Same specific concept and method tested. A student who practised our predicted question would be directly prepared for the exam question.
  • Moderate Match (1-2 predictions): Same broader topic area covered. Partial preparation value — the student would recognise the territory.
  • No Match: The exam question's specific concept was not covered in our predictions.
Important Note: We only count a "strong match" when the specific concept and method tested in the exam aligns closely with a predicted question. Simply being from the same chapter does not qualify. We aim for honesty over inflated numbers.

Section-wise Breakdown

The CBSE Class 12 Mathematics paper (65/1/1) has 5 sections with 38 questions (including OR choices) totalling 80 marks. Here's how our predictions performed in each section:

Section Questions Marks Strong Moderate No Match Touch Rate
A (MCQ, 1 mark) 20 20 10 4 6 70%
B (VSA, 2 marks) 5 10 3 1 1 80%
C (SA, 3 marks) 6 18 4 1 1 83%
D (LA, 5 marks) 4 20 3 0 1 75%
E (Case Study, 4 marks) 3 12 2 0 1 67%
Total 38 80 22 6 10 73%

Key Insight: Short Answer and Long Answer Sections Had the Best Coverage

Section C (3-mark short answers) achieved an 83% touch rate, and Section B (2-mark VSA) reached 80%. These high-value questions are where practising predicted questions pays the biggest dividends. Across Sections B, C, and D combined — worth 48 marks total — only 3 questions out of 15 had no match in our prediction bank.

Top Prediction Matches

Below are the 8 strongest matches found, graded by our strict audit. We're only showing matches where a student practising our prediction would have been directly prepared for the exam question.

Matrix Inverse to Solve System of Equations STRONG MATCH
Our Prediction (#201)

"If A = [[1, -2, 0], [2, -1, -1], [0, -2, 1]], find A−¹ and use it to solve the system of linear equations."

Exam Question (Q33a — 5 marks)

"If A = [[0, 2, 1], [-2, -1, -2], [1, -1, 0]], find A−¹ and use it to solve: −2y+z=7, 2x−y−z=8, x−2y=10"

Both require finding matrix inverse and applying it to solve a 3-variable system. Same method, same marks, same difficulty level.

Order and Degree of Differential Equation STRONG MATCH
Our Prediction (#178)

"The order and degree of the differential equation [1 + (dy/dx)²]3/2 = d²y/dx²"

Exam Question (Q12 — 1 mark)

"The order and degree of d/dx(ey) = 0 are respectively..."

Same concept — identifying order and degree from a given differential equation. Our prediction bank had 6 questions on this concept.

Equivalence Relation on Set of Integers STRONG MATCH
Our Predictions (#44, #45)

"Identify relations which are reflexive, transitive but not symmetric" (#44); "Identify relations which are reflexive and symmetric but not transitive" (#45).

Exam Question (Q32a — 5 marks)

"A relation R on Z defined as R = {(x,y) : |x−y| is divisible by prime p}. Check whether R is an equivalence relation."

Both test checking reflexive, symmetric, and transitive properties. 17 predicted questions covered this topic area.

Bayes' Theorem — Bags and Balls STRONG MATCH
Our Prediction (#462)

"A bag A contains 4 black and 6 red balls and bag B contains 7 black and 3 red balls. A die is thrown..."

Exam Question (Q31a — 3 marks)

"Bag I has 3 red, 4 white balls. Bag II has 8 red, 6 white. A die is thrown — if <3, draw from Bag I, else from Bag II. Find P(red ball)."

Nearly identical setup — two bags with coloured balls, die determines which bag. Same Bayes' theorem application.

LPP — Graphical Method STRONG MATCH
Our Prediction (#28)

"Solve graphically: Maximize Z = 8x + 9y, subject to constraints..."

Exam Question (Q30 — 3 marks)

"Minimize Z = 13x − 15y graphically, subject to x+y≤7, 2x−3y+6≥0, x≥0, y≥0"

Same method — graphical LPP with corner point evaluation. 20 predicted questions covered LPP.

Find Vector of Given Magnitude in a Direction STRONG MATCH
Our Prediction (#24)

"Find a vector of magnitude 21 units in the direction opposite to that of AB where A and B are points..."

Exam Question (Q23 — 2 marks)

"Find a vector of magnitude 14 in the direction of QP, where P(1,3,2) and Q(−1,0,8)"

Same concept — finding a vector of specific magnitude in the direction of a line joining two points.

Area of Circle Using Integration STRONG MATCH
Our Prediction (#152)

"Using integration, find the area of the region enclosed between the circle x²+y² = 16 and the line x = 2"

Exam Question (Q38 — Case Study)

"Roundabout with boundary C&sub1;: x²+y² = 64 and pond C&sub2;: x²+y² = 4. Using integration, find area of the circular region."

Both test area of circle using integration — same method, same underlying concept.

Particular Solution of Differential Equation STRONG MATCH
Our Predictions (#198, #285)

"Find the particular solution of x²(dy/dx) = x²cos(x/y)" (#198); "Find the particular solution of dy/dx = xy/(x²+y²)" (#285).

Exam Question (Q29 — 3 marks)

"Find general solution of x²(dy/dx) = x²+xy+y² OR particular solution of xy(dy/dx) = (x+2)(y+2), y(1)=−1"

Same type — solving first-order differential equations. 20 predicted questions covered DE solutions.

Where Our AI Was Strongest

Matrices & Determinants: 14 of 17 Predictions Matched

This was our best-performing topic. The A−¹ solve-system question (Q33a) was almost identical to our Prediction #201. With 17 predicted questions covering matrix operations, determinants, and applications, our model captured the vast majority of exam concepts from this chapter.

Vector Algebra & 3D Geometry: 70 Predictions Covered All 8 Questions

With 45 vector algebra and 25 three-dimensional geometry predictions, our model covered all 8 exam questions from these two topics. From finding vectors of given magnitude (Q23) to direction cosines and line equations, every question type appeared in our prediction bank.

Differential Equations: 30 Predictions Matched All 3 Questions

Our 30 predictions covering order/degree identification, integrating factor methods, and general/particular solutions matched all 3 differential equation questions in the paper — Q12 (order and degree), Q29 (particular solution), and related MCQs.

Relations & Functions: 17 Predictions for Equivalence Relations

The 5-mark question on equivalence relations (Q32a) was well-covered by our predictions #44 and #45, which tested the exact same skill — checking reflexive, symmetric, and transitive properties on defined relations.

Where We Fell Short

Honesty demands we acknowledge where we missed:

  • Parametric Differentiation: Q34 asked to find d²y/dx² for x = cos t, y = cos mt — a parametric form we did not have a close prediction for.
  • Niche MCQ Concepts: Some 1-mark questions tested very specific points like row-matrix order and particular trigonometric identities inside determinants that fell outside our prediction patterns.
  • Unusual Integrals: The integral ∫x³/(x²+2|x|+1) dx was too niche for our pattern-matching approach to anticipate.
  • One Case Study Miss: Section E had one case study (out of 3) where our predictions did not provide adequate preparation.

These gaps highlight where our model needs improvement — particularly in generating more diverse MCQ-level conceptual questions and covering edge-case integral forms.

Exam Paper Details

Paper
CBSE Class 12 Mathematics 2025-26
Paper Code
65/1/1
Total Questions
38 (with OR choices)
Maximum Marks
80
Time Allowed
3 hours
Sections
A (MCQ - 20 marks), B (VSA - 10 marks), C (SA - 18 marks), D (LA - 20 marks), E (Case Study - 12 marks)

Download the Actual Paper

Want to verify our predictions yourself?

Download the actual CBSE Class 12 Mathematics paper and compare it with our 483 predicted questions.

Paper 65/1/1 (PDF)

What This Means

EDII AI's 73% match rate on the CBSE Class 12 Mathematics paper is consistent with our results across subjects — 76% for Chemistry and 73% for Science. This consistency demonstrates that our prediction engine is reliable across different subjects and question formats, not just a one-off result.

Our prediction engine analyses years of past papers, syllabus weightage, chapter importance, and question format patterns to identify the most probable topics and question styles. With 22 strong matches and 6 moderate matches out of 38 total questions, students who practised our predicted questions were significantly better prepared — especially for the high-scoring Sections B, C, and D where our touch rate exceeded 75%.

For Students & Teachers

EDII AI's question prediction is available as part of the EdX exam preparation module. Schools using EDII can generate predicted question sets for any upcoming board exam. Learn more about our plans.