CBSE Class 10 Maths Answer Key 2026 (OUT) LIVE: Exam ends; Detailed student reviews with expert solutions
CBSE Class 10 Maths Exam 2026 was successfully held on February 17. Through this live blog, you can check the Unofficial Answer Key for all sets of question paper and detailed student reviews.
CBSE Class 10 Maths Exam 2026:CBSE has successfully conducted the Class 10 Mathematics exam on February 17. As per the feedback provided by students, the exam was of a moderate difficulty level. This was the first exam for Class 10 students this year, and the exam timing was 10:30 AM to 1:30 PM. Through this live blog, students can check the unofficial answer key and detailed exam analysis.We have provided the unofficial subject expert answer key here for all the question paper sets. CBSE 10th Mathematics is divided into Standard and Basic Mathematics. The majority of students appeared for the Standard Mathematics paper.CBSE 10th Maths Paper 2026 draws mixed reactions from students, with the majority students indicating that the paper was tougher than last year.
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CBSE Class 10 Maths Answer Key 2026 Unofficial
The unofficial CBSE Class 10 Maths Answer Key 2026 has been updated here -SET 1, 30/2/1
Questions | Answers |
The LCM of 960 and 240 is? | A) 960 |
The natural number 1 is? | D) Neither prime nor composite |
For any natural number 'n', 5^n ends with the digit? | B) 5 |
If α and β are two zeroes of a polynomial f(x)= px^2-2x+3p and α+β = αβ, then, value of p is? | B) 2/3 |
In triangles ABC and PQR, ∠A= ∠Q and ∠B=∠R, then AB:AC is equal to? | C) QR : QP |
SET 2, 30/2/2
Questions | Answers |
The pair of linear equations 3x/2 + 5y/3 = 7 and 9x + 10y = 14 is? | B) Inconsistent |
The value of x for which 2x, (x+10) and (3x+2) are three consecutive terms of an A.P. is? | A) 6 |
The mean and median of a frequency distribution are 43 and 43.4 respectively. The mode of the distribution is? | C) 44.2 |
If the distance between the points (4,p) and (1,0) is 5, then p is equal to? | A) +4, -4 |
If cos A= 4/5, then tan A is? | B) 3/4 |
SET 3, 30/1/3
Questions | Answers |
If a pair of linear equations in two variables is represented by two coincident lines, then the pair of equation has? | D) an infinite no of solutions |
If triangle ABC and triangle DEF are similar such that 2AB= DE and BC= 8 cm, then EF is equal to? | A) 4 cm |
The mid points of the line segment joining the points (5,-4) and (6,4) lies on? | A) X axis |
If Cos A= 1/2, then the value of Sin^2A + 2Cos^2A is? | B) 5/4 |
If TP and TQ are two tangets to a circle with a centre O from an external point T, so that angle POQ= 120 degree, then angle PTQ is equal to? | A) 60 degree |
SET 1, 30/3/1
Questions | Answers |
The median and mode of a distribution are 25.2 and 26.1 respectively. The mean of the distribution is? | A) 24.75 |
It is given that triangle ABC ~ triangle QRP, such that AB= 9 cm, BC = 5 cm and PR = 2 cm. Length of the side QR is? | C) 10/9 cm |
Equation of another line parallel to the line represented by 2x-6y= 7 is? | C) x - 3y = 7 |
The nth term of the AP. -1/3, 2/3, 5/3, 8/3,---- is? | B) n-4/3 |
Two dice are rolled together. The probability that the sum of the numbers obtained is divisible by 6, is? | A) 1/6 |
SET 1, 30/5/1
Questions | Answers |
The line segment joining the points P (-4,-2) and Q (10,4) is divided by y-axis in the ration? | A) 2:5 |
The value of k for which the equation kx^2-6x-4=0 has real and equal roots is? | C) -9/4 |
If the zeros of a polynomial p(x) are -3 and 8, then p(x) equals? | B) (x+ 3) (-x+8) |
While calculating mean of a grouped frequency distribution, step deviation method was used <(x-a)/h=u>. It was found that x=64, h=5 and a= 62.5. The value of u is? | C) 0.3 |
The value of p for which roots of the quadratic equation x^2-px+6=0 are rational, is? | B) =5 |
SET 3, 30/3/3
Questions | Answers |
The number of multiple of 6 lying between 25 and 363 is? | A) 56 |
Two dice are rolled together. The probability that the sum of the numbers obtained is divisible by 6 is? | A) 1/6 |
A polynomial p(x), which has sum of its zeroes euqal to their product, is? | C) 3x^2-2x+2 |
The value of (1/2tan^2 45 degree - cos^2 60degree) is? | C) 1/4 |
(2X11X13+3) is? | C) a composite number |
CBSE Class 10 Maths 2026 Paper Analysis & Student Reviews
Here is a quick analysis of CBSE Class 10 Maths 2026 exam:According to Rajesh from Vijayawada, the exam was of 'Moderate' difficulty level. He is expecting to score 58 or 60 maximum.
Gautam from Delhi found the paper 'Tough'. He is expecting to get 50 to 60. According to Gautam, a few questions took good amount of time to answer.
Orga from Kolkata though the paper was 'Easy'. They answered all the questions and are expecting over 65 marks in the test.
From Kerala, a student named Jahnvi said the paper was 'Easy'. She is expecting around 78 marks in the exam.
Kynal from Portblair found the paper Moderate and are expecting roughly 75 marks.
Students can check further details regarding important questions and weightage through the live blog below. Some students considered the basic Mathematics Moderate while the standard Mathematics exam is being reported as Moderate! The marks expected are around 50 to 65 out of 80!
CBSE Class 10 Maths Exam 2026 Live Updates
Feb 17, 2026 05:06 PM IST
CBSE Class 10 Maths Live Coverage Ends
As we have added the unofficial key subject experts and provided student reviews, this live blog coverage has now ended. All the Best to students appearing for upcoming Class 10 exams.
Feb 17, 2026 03:15 PM IST
Unofficial Answer Key OUT!
CollegeDekho has released the unofficial answer key along with student reactions for CBSE Class 10th Maths Exam 2026! Check your answers and predict the score!
Feb 17, 2026 01:35 PM IST
Exam ends, Answer key releasing soon!
The exam has ended at 1:30 PM. The CBSE Class 10 Maths Answer Key will be released here shortly along with the paper analysis!
Feb 17, 2026 10:30 AM IST
Exam Starts, Students to take the test till 1:30 PM!
The CBSE Class 10 Maths Exam 2026 has commenced from 10:30 AM onwards. The 3-hour-long test will wind up at 1:30 PM! The answer key and student reviews will be shared here soon after the exam ends.
Feb 17, 2026 09:27 AM IST
Students gathered at Exam Centres for the 10th Maths Exam
Students have already reached the exam centres, and the entry shall begin at 10 AM. Students accompanied by parents can be seen at various centres. As this is the first 10th CBSE exam and being a major subject, Mathematics, students might be little nervous about the exam.
Feb 17, 2026 08:43 AM IST
Few more hours left for the CBSE 10th Maths Exam
The Maths exam of CBSE 10th shall begin at 10:30 AM. Students have already started reaching their respective schools or getting ready to reach the exam centre. Usually, schools organise transport facilities to exam centres. Students must report at the exam centre by 10:00 AM.
Feb 17, 2026 08:30 AM IST
Practice Quetsion 37 with Answer
Question | The centre of a circle is at (2, 0). If one end of a diameter is at (6, 0), then the other end is at:
Answer | (-2,0)
Feb 17, 2026 08:00 AM IST
Practice Question 36 with Answer
Question | Two dice are rolled together. The probability of getting a sum of numbers on the two dice as 2, 3 or 5, is:
Answer | 367
Feb 17, 2026 07:30 AM IST
Practice Question 35 with Answer
Question | The volume of the largest right circular cone that can be carved out from a solid cube of edge 2 cm is:
Answer | 32π cu cm
Feb 17, 2026 07:00 AM IST
Practice Question 34 with Answer
Question | The middle-most observation of every data arranged in order is called:
Answer | Median
Feb 17, 2026 06:30 AM IST
Practice Question 33 with Answer
Question | A solid sphere is cut into two hemispheres. The ratio of the surface areas of a sphere to that of two hemispheres taken together is:
Answer | 2:3
Feb 17, 2026 06:00 AM IST
Practice Question 32 with Answer
Question | If cos(α+β)=0, then value of cos(2α+β) is equal to:
Answer | 21
Feb 17, 2026 05:30 AM IST
Practice Question 31 with Answer
Question | If the distance between the points (3,−5) and (x,−5) is 15 units, then the values of x are:
Answer | -12, 18
Feb 17, 2026 05:00 AM IST
Practice Question 30 with Answer
Question | The zeroes of a polynomial x2+px+q are twice the zeroes of the polynomial 4x2−5x−6. The value of p is:
Answer | −25
Feb 17, 2026 04:30 AM IST
Practice Question 29 with Answer
Question | For some data x1,x2,...xn with respective frequencies f1,f2,...fn, the value of ∑1nfi(xi−x) is equal to:
Answer | 0
Feb 17, 2026 04:00 AM IST
CBSE Class 10 Maths Exam 2026 Today: Important exam day instructions
Here are the important instructions for students appearing for the CBSE 10th Mathematics exam today -
- Students are advised to reach the exam centre by 9:30 AM, and the entry into the exam hall closes at 10 AM
- The exam begins at 10:30 AM, and the entry into the exam centre shall not be allowed after 10 AM
- Students should not carry any sort of printed materials (except for hall ticket) into the exam hall
- Students are advised to carry an extra pen
- Students can carry their water bottle and there is no restriction on the same
Feb 17, 2026 03:00 AM IST
Practice Question 28 with Answer
Question | From the data 1, 4, 7, 9, 16, 21, 25, if all the even numbers are removed, then the probability of getting at random a prime number from the remaining is:
Answer | 52
Feb 17, 2026 02:00 AM IST
Practice Question 27 with Answer
Question | If sec θ−tan θ=m, then the value of sec θ+tan θ is:
Answer | m1
Feb 17, 2026 01:00 AM IST
Practice Question 26 with Answer
Question | AD is a median of ΔABC with vertices A(5,−6),B(6,4) and C(0,0). Length AD is equal to:
Answer Key | (c) 101 units
Feb 17, 2026 12:30 AM IST
Practice Question 25 With Answer
Question | If two positive integers p and q can be expressed as p=18a2b4 and q=20a3b2, where a and b are prime numbers, then LCM (p, q) is:
Answer | 180a3b4
Feb 17, 2026 12:00 AM IST
Practice Question 24 with Answer
Question | In an A.P., if the first term a=7, nth term an=84 and the sum of first n terms sn=22093, then n is equal to:
Answer | 23
Feb 16, 2026 11:30 PM IST
Practice Question 23 with Answer
Question | If the roots of the equation ax2+bx+c=0,a=0 are real and equal, then which of the following relations is true?
Answer | ac=4b2
Feb 16, 2026 11:00 PM IST
Practice Question 22 with Answer
Question | If the probability of a player winning a game is 0.79, then the probability of his losing the same game is:
Answer | 0.21
Feb 16, 2026 10:30 PM IST
Practice Question 21 with Answer
Question | If the sum of zeroes of the polynomial p(x)=2x2−k2x+1 is 2, then value of k is:
Answer | 2
Feb 16, 2026 10:20 PM IST
Previous Years' Question 10 with Answer
The 11th and 13th terms of an AP are 39 and 45, respectively. What is the common difference of the AP?
A) 42
(B) 21
(C) 6
(D) 3
Correct Answer I (D) 3
Feb 16, 2026 10:00 PM IST
Previous Years' Question 9 with Answer
If (-1)^n + (-1)^8 = 0, then n is :
(A) any positive integer
(B) any negative integer
(C) any odd number
(D) any even number
Correct Answer I (C) any odd number
Feb 16, 2026 09:40 PM IST
Is CBSE Class 10 Maths Paper 2026 Leaked?
There is no possibility of the CBSE Class 10 Maths Paper 2026 leak. In fact, there is very little scope for a leak because CBSE prepares multiple sets of question papers for board exams. Different sets are distributed across exam centres, and even within the same centre, students may receive different paper codes.
This system ensures that even if one set were compromised (which has not happened), it would not affect all students!
Feb 16, 2026 09:20 PM IST
Previous Years' Question 8 with Answer
The tangents drawn at the extremities of the diameter of a circle are
always :(A) parallel
(B) perpendicular
(C) equal
(D) intersecting
Correct Answer I (A) Parallel
Feb 16, 2026 09:01 PM IST
False rumours spreading on CBSE Class 10 Maths 2026 paper leak
False rumours have been spreading on the CBSE Class 10 Maths paper leak 2026 on social media and YouTube platforms. There is no such paper leak case reported in the last few hours. Students are advised not to believe these rumours.
Feb 16, 2026 09:00 PM IST
Previous Years' Question 7 with Answer
If HCF(98, 28) = m and LCM(98, 28) = n, then the value of n-7m is:
(A) 0
(B) 28
(C) 98
(D) 198
Correct Answer I (A) 0
Feb 16, 2026 08:40 PM IST
Previous Years' Question 6 with Answer
The mid-point of the line segment joining the points P(4, 5) and Q(4, 6) lies on :
(A) x-axis
(B) y-axis
(C) origin
(D) neither X-axis nor the Y-axis
Correct Answer I (D) neither the X-axis nor the Y-axis
Feb 16, 2026 08:20 PM IST
Previous Years' Question 5 with Answer
If x = 1 and y = 2 is a solution of the pair of linear equations 2x and 2x + 3y b = 0, then :
(A) a = 2b
(B) 2a = b
(C) a + 2b = 0
(D) 2a + b = 0
Correct Answer I (D) 2a + b = 0
Feb 16, 2026 08:17 PM IST
Previous Years' Question 4 with Answer
The greatest number which divides 70 and 125, leaving remainders 5 and 8 respectively, is :
(A) 13
(B) 65
(C) 875
(D) 1750
Correct Answer I (A) 13
Feb 16, 2026 08:13 PM IST
Previous Years' Question 3 with Answer
Three numbers in AP have the sum 30. What is its middle term?
(A) 4
(B) 10
(C) 16
(D) 8
Correct Answer I (B) 10
Feb 16, 2026 08:00 PM IST
Previous Years' Question 2 with Answer
If the sum of the first m terms of an AP is 2m 2 + 3m, then its second term is :
(A) 10
(B) 9
(C) 12
(D) 4
Correct Answer I (D) 4
Feb 16, 2026 07:40 PM IST
Previous Years' Question 1 with Answer
Mode and Mean of the data are 15x and 18x, respectively. Then the median of the data is :
(A) x
(B) 11x
(C) 17x
(D) 34x
Correct Answer I (C) 17x
Feb 16, 2026 07:20 PM IST
CBSE 10th Maths 2026: Marks Distribution
Marks Distributions for CBSE 10th Maths 2026 are as follows:
Unit Name
Marks Number System
06 ALGEBRA
20 Coordinate Geometry
06 Geometry
15 Trigonometry
12 Mensuration
10 Statistics and Probability
11 Total Marks
80 Feb 16, 2026 06:43 PM IST
Last minute revison topics for CBSE 10th Maths 2026
As students have entered the final phase revison, here are the important expert tips -
- Focus only on high weightage chapters and moderate weightage chapters
- Practice more questions than learning new topics
- Immediately learn the mistakes made while answering the parctice questions
- Improve the accuract by revising formulas
Feb 16, 2026 06:00 PM IST
Practice Question 20 with Answer
If HCF(98, 28) = m and LCM(98, 28) = n, then the value of n 7m is :
- (A) 0
- (B) 28
- (C) 98
- (D) 198
Correct Answer | (C) 98
Feb 16, 2026 05:40 PM IST
Practice Question 19 with Answer
If x = 1 and y = 2 is a solution of the pair of linear equations 2x 3y + a = 0 and 2x + 3y b = 0, then :
- (A) a = 2b
- (B) 2a = b
- (C) a + 2b = 0
- (D) 2a + b = 0
Correct Answer | (B) 2a = b
Feb 16, 2026 05:20 PM IST
Practice Question 18 with Answer
Three numbers in AP have the sum 30. What is its middle term ?
- (A) 4
- (B) 10
- (C) 16
- (D) 8
Correct Answer | 10
Feb 16, 2026 05:00 PM IST
Practice Question 17 with Answer
A piece of wire 20 cm long is bent into the form of an arc of a circle of radius cm. The angle subtended by the arc at the centre of the circle is :
- (A) 30 degrees
- (B) 60 degrees
- (C) 90 degrees
- (D) 50 degrees
Correct Answer | 60 Degrees
Feb 16, 2026 04:40 PM IST
Few Important 3 Mark Questions
- Two dice are thrown at the same time. Determine the probability that the difference of the numbers on the two dice is
- Find the ratio in which the y-axis divides the line segment joining the points (5, 6) and ( 1, 4). Also, find the point of intersection.
Feb 16, 2026 04:20 PM IST
Important 4 Marks questions on Triange and Speed of Train
- The perimeter of a right triangle is 60 cm, and its hypotenuse is 25 cm. Find the lengths of the other two sides of the triangle.
- A train travels a distance of 480 km at a uniform speed. If the speed had been 8 km/h less, then it would have taken 3 hours more to cover the same distance. Find the speed of the train.
Feb 16, 2026 04:00 PM IST
Important 4 Mark question on Parallelogram
The diagonal BD of a parallelogram ABCD intersects the line segment AE at the point F, where E is any point on the side BC. Prove that DF EF = FB FA.
Feb 16, 2026 03:20 PM IST
Practice Question 16 with Answer
Question | Value of ∠APO if PA is a tangent and ∠POB=115∘.
Answer | 25°
Feb 16, 2026 03:00 PM IST
Practice Question 15 with Answer
Question | Radius of circle if sector area is 40π and central angle is 72°.
Answer | 102 units
Feb 16, 2026 02:40 PM IST
CBSE Maths Practice Question 14 with Answer
Question | A rational number between 3 and 5.
Answer | 1.857142
Feb 16, 2026 02:20 PM IST
CBSE Maths Practice Question 13 with Answer
Question | Probability of selecting a red face card from a deck of 52 cards.
Answer | 3/26
Feb 16, 2026 02:00 PM IST
CBSE 10th Maths Practice Question 12 with Answer
Question | Median of data if Mode = 15x and Mean = 18x.
Answer | 17x
Feb 16, 2026 01:40 PM IST
Quck Summary on Simple Situational Problems
Situation Logic for Equations
Fixed & Variable Charges (Fixed Charge) + (Rate × Units) = Total Cost
Ages (Person A's age) ± n years = (Person B's age) × factor
Geometry 2(L+W)=Perimeter
Numbers/Digits 10x+y (for a two-digit number)
Feb 16, 2026 01:20 PM IST
Quick Summary on Algebraic conditions for number of solutions
Number of Solutions Nature of System Algebraic Name Unique Solution Consistent Independent Infinite Solutions Consistent Dependent Zero Solutions Inconsistent Parallel Feb 16, 2026 01:03 PM IST
Important 4 Mark question on Annual Interest Calculation - Case Study
Vijay invested certain amounts of money in two schemes A and B, which offer interest at the rates of 8% per annum and 9% per annum, respectively. He received 1,860 as the total annual interest. However, had he interchanged the amounts of investments in the two schemes, he would have received 20 more as annual interest. How much money did he invest in each scheme?
Feb 16, 2026 01:00 PM IST
CBSE Maths Practice Question 11 with Answer
Question | Second term of AP if sum of first m terms Sm=2m2+3m.
Answer | 9
Feb 16, 2026 12:30 PM IST
CBSE Maths Practice Question 10 with Answer
Question | Number of distinct zeroes of both polynomials shown in the graph.
Answer | 4
Feb 16, 2026 12:20 PM IST
Quick Summary on Pair of linear equations in two variables
Ratio Comparison Graphical Representation Algebraic Interpretation Consistency a2a1=b2b1 Intersecting Lines Exactly one unique solution Consistent a2a1=b2b1=c2c1 Coincident Lines (Overlap) Infinitely many solutions Consistent (Dependent)
a2a1=b2b1=c2c1 Parallel Lines No solution Inconsistent Feb 16, 2026 12:00 PM IST
CBSE Maths Practice Question 9 with Answer
Question | Nature of n if (−1)n+(−1)8=0.
Answer | Any odd number
Feb 16, 2026 11:40 AM IST
CBSE Maths Practice QUestion 8 with Answer
Question | Relationship between ΔABC and ΔDEF if ∠B=∠E, ∠F=∠C, AB=3DE.
Answer | Similar but not Congruent
Feb 16, 2026 11:20 AM IST
CBSE Maths Practice Question 7 with Answer
Question | Relationship between tangents at the extremities of a diameter.
Answer | Parallel
Feb 16, 2026 11:00 AM IST
CBSE Maths Practice Question 6 with Answer
Question | Value of n−7m where m=HCF(98,28) and n=LCM(98,28)
Answer | 98
Feb 16, 2026 10:40 AM IST
CBSE Maths Practice Question 5 with Answer
Question | Value of tan2θ−(cosθ1×secθ)
Answer | -1
Feb 16, 2026 10:20 AM IST
CBSE Maths Practice Question 4 with Answer
Question: Value of θ if 7+4sinθ=9.
Answer: 30°
Feb 16, 2026 10:00 AM IST
QUick Summary on relationship between zeros and coefficients of quadratic polynomials
Here is the quick summary on the relationship between zeros and coefficients of quadratic polynomials -
Property Relationship Formula Sum of Zeros The sum of the roots is equal to the negative ratio of the linear coefficient to the leading coefficient. α+β=−ab Product of Zeros The product of the roots is equal to the ratio of the constant term to the leading coefficient. α⋅β=ac Polynomial Formation You can reconstruct the polynomial if you know the sum (S) and product (P) of its zeros. k[x2−(α+β)x+(αβ)] Feb 16, 2026 09:20 AM IST
CBSE Maths Practice MCQ 2 with Answer
Question |
Correct Answer: Option B
Feb 16, 2026 09:00 AM IST
CBSE Maths Practice MCQ 1 with Answer
Question |
Answer | Option D - 4
Feb 16, 2026 08:40 AM IST
Quick Summary on Zeros of a Polynomial
Here is a quick summary of the Zeros of a Polynomial concept from CBSE 10th Mathematics -
Feb 16, 2026 08:20 AM IST
CBSE Class 10 Maths: Quick Summary of Fundamental Theorem of Arithmetic
Here is the quick summary table on Class 10 Maths Fundamental Theorem of Arithmetic -
Aspect Key Concept The Core Idea Every composite number can be expressed as a product of primes. Uniqueness The factorization is unique, except for the order in which the primes appear. HCF Calculation Product of the smallest power of each common prime factor. LCM Calculation Product of the greatest power of each prime factor involved. Feb 16, 2026 08:00 AM IST
CBSE Class 10 Maths: Quick Summary of Real Numbers Topic
Here is the short summary table on the Real Numbers topic of Class 10 Maths -
Concept Key Takeaway Prime Factorization The "DNA" of a composite number. HCF Product of the smallest power of each common prime factor. LCM Product of the greatest power of each prime factor involved. Irrationality Numbers that never end and never repeat in decimal form. Feb 16, 2026 07:45 AM IST
CBSE Class 10 Mathematics 2026 Top Priority Chpaters
Here are the top priority chapters for the CBSE Class 10 Mathematics exam -
- Algebra
- Geometry
- Trigonometry
These three chapters account to 46 marks, which accounts to 51% weightage.
Feb 16, 2026 07:40 AM IST
CBSE Class 10 Mathematics Chapter-Wise Weightage 2026
Here is the detailed weightage for the CBSE Class 10 Mathematics exam 2026 -
Name of the Chapter Marks Weightage Number Systems 6 Algebra 20 Coordinate Geometry 6 Geometry 15 Trigonometry 12 Mensuration 10 Statistics and Probability 11