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17-02-2026
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The CBSE Class 10th Mathematics Basic Answer Key 2026 is one of the most searched resources after the board examination concludes. Students who opted for the Mathematics Basic paper are eager to verify their responses, evaluate their performance, and calculate their expected scores. In this comprehensive blog, you will find complete details about the CBSE Class 10 Maths Basic Answer Key 2026, including how to download the PDF for all sets, paper analysis, marking scheme, and FAQs.
The Class 10 board exams are conducted by the Central Board of Secondary Education (CBSE), which ensures a standardized and fair evaluation process across the country.
The paper includes topics such as Algebra, Geometry, Trigonometry, Mensuration, Statistics, and Probability.
After the exam, several educational platforms and subject experts release unofficial answer keys for all question paper sets (Set 1, Set 2, Set 3, Set 4). If the official answer key is released, it will be available on the official website of the Central Board of Secondary Education.
The answer key PDF generally includes:
Students should carefully download the answer key according to their specific set to avoid confusion.
| QUESTION SET | LINK |
| Question set 1 | Updating soon... |
| Question set 2 | Set 2 (30/5/3) |
| Question set 3 | Updating soon... |
| Question No. | Question Text | Answer |
| 1 | The sum of the age of a father (x) and three times the age of his daughter (y) is 59. The equation is: | Option (C) x+3y=59 |
| 2 | The 10th term of the A.P. √2, √8, √18,... is: | Option (B) √200 |
| 3 | The value of (sec45∘−cos45∘) is equal to: | Option (A) sin45∘ |
| 4 | One of the possible values of A, for which cos2A=cosA, is: | Option (A) 0∘ |
| 5 | Sun's altitude when a stick's shadow is √3 times its length: | Option (A) 30∘ |
| 6 | Slant height of the largest cone carved from a hemisphere of radius 'r': | Option (C) √2r |
| 7 | If mean is 3/4 times the median, then mode is: | Option (B) 3/2 times the median |
| 8 | Difference of lower limit of median class and upper limit of modal class: | Option (B) 20 |
| 9 | Probability of getting an odd prime number less than 3 on a die: | Option (D) 0 |
| 10 | Values of m and n if HCF(3,99)=3m⋅11n: | Option (B) 1, 0 |
| 11 | True statement for HCF and LCM of two distinct natural numbers: | Option (D) (ii) only (HCF is a factor of LCM) |
| 12 | Which system of equations has a unique solution? | Option (C) x+y=2,x−y=3 |
| 13 | If roots of lx2−mx+n=0 are reciprocal of each other: | Option (A) l=n |
| 14 | If x=−1 is a root of ax2−bx+3=0, then: | Option (D) a+b+3=0 |
| 15 | In the given figure (Rectangle ABCD), the length of a diagonal is: | Option (C) 5 units |
| 16 | In the given figure, if ME||SU, then which of the following statements is correct? | Option (C) ΔOEM∼ΔUSO |
| 17 | In the given figure, if ΔACP∼ΔDCP, then (value of angle): | Option (B) ∠DCP=30∘ |
| 18 | Assertion (A) : (√2 + √3) is an irrational number. Reason (R) : The sum of two irrational numbers is always an irrational number. | Option (C) A is true, but R is false |
| 19 | Assertion (A) : The probability of a certain event E is 1. Reason (R) : The sum of probabilities of all elementary events of an experiment is 1. | Option (A) Both A and R are true, and R is the correct explanation of A |
Check : CBSE CLASS 10 MATHS STANDARD 2026
To estimate your marks using the CBSE Class 10th Mathematics Basic Answer Key 2026:
The answer key is helpful because it:
✔ Reduces exam-related stress
✔ Helps students identify mistakes
✔ Clarifies correct solving methods
✔ Builds confidence before results
✔ Assists teachers and parents in performance analysis
It also helps students understand the overall difficulty level of the 2026 Mathematics Basic paper.
Q1. When will CBSE release the Class 10 Maths Basic Answer Key 2026?
Unofficial answer keys are usually available on the same day of the exam. The official answer key, if released, will be published on the CBSE website.
Q2. Is the CBSE Class 10 Maths Basic Answer Key 2026 available for all sets?
Yes, answer keys are released separately for each question paper set.
Q3. Is there negative marking in CBSE Class 10 Maths Basic exam?
No, there is no negative marking in the CBSE Class 10 board examinations.
Q4. Can students challenge the official answer key?
If CBSE publishes an official answer key, students may get an opportunity to raise objections within a specified period.
Q5. What is the difference between Maths Basic and Maths Standard?
Maths Basic is designed for students not planning to continue Mathematics in higher classes, while Maths Standard is for students who intend to study Mathematics in Class 11 and 12.
The CBSE Class 10th Mathematics Basic Answer Key 2026 – Download PDF for All Sets is an essential resource for students to assess their board exam performance. By carefully reviewing the solutions and comparing them with your responses, you can confidently estimate your marks and prepare for the next academic step.
Keep visiting the official website of the Central Board of Secondary Education for the latest updates regarding answer keys and results.
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