CBSE Class 10 exam analysis 2026: the season by the numbers
Seven Class 10 papers from 2026, CBSE and ICSE, read question by question: how each was built, where the choices sat, and how long each takes to solve.
We read seven Class 10 papers from 2026, question by question. From CBSE: Maths Standard, Maths Basic and Science. From ICSE: Maths, Physics, Chemistry and Biology. Every one was an 80-mark paper, but the two boards built them very differently. The numbers below describe the papers, not how any child did.
Which 2026 Class 10 papers are in this analysis?
Seven papers, all in the Class 10 papers we cover. For each one we counted the marks, the questions and the choices from the paper itself. We then rated each question for difficulty and estimated the time it takes.
The counts are facts about the paper. The difficulty ratings and minutes are our estimates. None of them comes from a child's answer sheet.
How was the CBSE Class 10 Science 2026 paper split?
Into three subject sections. Section A was Biology, questions 1 to 16, for 30 marks. Section B was Chemistry, questions 17 to 29, for 25 marks. Section C was Physics, questions 30 to 39, for 25 marks.
The paper told students to keep each answer in its matching section of the answer book. That is a change from the 2025 Science paper, which grouped questions by type into five sections.
- Choice kept the subject split. Nine questions offered two versions, worth 28 marks between them. Every valid choice still gave 30 Biology, 25 Chemistry and 25 Physics marks.
- One quarter was multiple choice. Twenty one-mark questions carried 20 marks. The other 60 needed written answers, diagrams or working.
- Some choices changed the topic. Questions 34 and 39 offered different electricity tasks. Up to 7 marks could move between resistance and circuits, heating and power.
- Each subject had a case study. Mendel's plants in Biology, metal extraction in Chemistry and lenses in Physics, 12 marks together.
Where the marks go in CBSE Science walks through each section's question types and where answers lose marks.
What did the 2026 CBSE Maths papers ask?
Maths Standard (set 30/2/1) and Maths Basic (set 430/1/1) had the same shape. Each had 38 questions in five sections, and nine internal choices worth 26 marks. Algebra carried 20 of the 80 marks in both.
- Standard asked for a graph. Question 32 carried five marks with no choice and asked for the answer by graph. An algebra answer alone did not do what was asked.
- Standard's statistics had no choice. All 11 marks of Statistics and Probability were compulsory. Question 35 asked for both the mode and the median.
- Basic's hardest questions were compulsory proofs. We rated Questions 29, 30 and 33 as difficult, 11 marks together. None of them had a second version to choose instead.
- Basic gave its own values. Question 25 said to use 3.14 for pi and 1.73 for the square root of 3.
Basic and Standard are different papers, not one paper marked two ways. Maths Basic or Standard: which to take explains the choice. CBSE's 2026-27 curriculum ends the two levels from that session, but students in Class 10 during 2026-27 may still take Maths Basic.
How were the ICSE 2026 papers built?
Every ICSE paper had two parts. Section A was 40 marks that everyone answers. In Section B, a student picked four whole questions of 10 marks each.
- Maths offered seven questions in Section B. That is 110 marks printed for an 80-mark paper, and 35 ways to pick four. Algebra was 23 to 31 of the 80 marks, depending on the four picked.
- Physics, Chemistry and Biology offered six. That is 100 marks printed, and 15 ways to pick four. In Physics, electricity was 8 to 24 marks of an attempt.
The ICSE sciences are three separate papers. CISCE's Physics syllabus gives each one two hours, while its Maths syllabus gives Maths three hours. How CBSE and ICSE papers differ puts the two boards side by side.
On an ICSE paper, half the mix of topics is settled by the four questions a student picks.
Which 2026 Class 10 paper was the toughest?
These papers cannot answer that, and we do not put them in order. We rated difficulty one paper at a time. The ratings are not on one shared scale, so a number on one paper cannot be set against another.
What the ratings can show is where the demanding marks sit inside one paper. On Maths Basic, they were all compulsory proofs. On Maths Standard, our difficult group held 3 to 13 marks, depending on the choices made. On Science, it held 8 to 20 marks.
So the useful question is not which paper was hardest. It is which marks your child's own paper made compulsory, and whether they are ready for those.
Was there enough time in the 2026 papers?
By our estimates, every one of the seven left time to check. Each paper also gave 15 minutes to read before writing. Here is our solving estimate against the writing time:
- CBSE Maths Standard: 149.5 to 156 minutes of 180.
- CBSE Maths Basic: 130.5 to 140 minutes of 180.
- CBSE Science: 129 to 133.5 minutes of 180.
- ICSE Maths: 123 to 128 minutes of 180.
- ICSE Physics: 90.5 to 92 minutes of 120.
- ICSE Chemistry: 88 to 92.5 minutes of 120.
- ICSE Biology: 76.5 to 80.5 minutes of 120.
The ranges come from the choices, since different versions take different time. The estimates are not a promise of anyone's speed. Managing time in the 3-hour paper shows how to check your child's own pace.
What do these numbers not tell you?
They do not tell you how any child did. No answer sheet was read for this article, and none of these numbers counts children. To see where one child's marks go, you need that child's own paper. A pre-board and what it can show explains how a practice paper does that.
The difficulty ratings and minutes are our estimates, not measurements. A mark can also be lost for reasons the paper cannot show, such as a skipped step. Why students lose marks they actually knew covers those. For the 2025 Maths paper read the same way, see decoding the CBSE Class 10 Maths 2025 paper.
For the marks CBSE gives each unit of Maths and Science, see Class 10 unit-wise weightage for Maths and Science. Where anything here differs from a board's own paper, the board's version is the one that counts.
How the four main Class 10 papers are built - sections, marks and choice - is set out in the CBSE Class 10 exam pattern for 2026-27.
Sources
Facts last checked against these sources on 30 September 2026.
About the author
Chief Architect
An engineer (B.Tech, Computer Science) with over 20 years of preparing students for entrance exams, including as Dean at FIITJEE and Vice-President at Aakash. He is the chief architect of the TRUpreBoards evaluation engine.
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