KCET Mathematics Unofficial Answer Key 2025 OUT: Set-wise questions with answer key solutions

KCET Mathematics Unofficial Answer Key 2025

KCET Mathematics Unofficial Answer Key 2025: Students who appeared for KCET Mathematics 2025 exam shall avail the KCET Mathematics Unofficial Answer Key 2025 here. As the exam was conducted through offline mode, the unofficial answer key across all sets, prepared by the experts, is now being updated here. It is important to note that all sets have the same questions, but their order is shuffled . Hence, questions and answers are directly updated here instea of question number vs answer. It will help students of all sets to directly verify their answers. As per the format, the Mathematics section will hold 60 questions, carrying 1 mark each for a correct answer and no negative marking. So, while cross-checking their responses, candidates should calculate their expected scores accordingly. The unofficial answer key here is reliable and accurate, so students may be assured to analyse their performance through the unofficial answer key here.

KCET Mathematics Unofficial Answer Key 2025

Below, the set-wise KCET Mathematics Unofficial Answer Key 2025 PDF will be available for students to download and check their responses.

Also Read | KCET Mathematics Paper Review 2025 ( OUT)

Sr.No. (Not Q.No.)	Question	Answer
1	If a matrix A= |1,1| |1,1| satisfies A 6 = k A 1 , then the value of k is	32
2	If A= |k,2| |2,k|  |A 3| =125, then the value of k is	± 3
3	If A is a square matrix satisfying the equation A 2 -5A + 7l = 0, where I is the identity matrix and 0 is null matrix of same order, then A -1	1/7 (5l- A)
4	If A is a square matrix of order 3 x 3, det A =1, then the value of det (3A -1 ) is	1/3
5	If B-= | 1, 3| |1, a| be the adjoint of a matrix A and |A| =2, then the value of a is	2
6	The system of equations 4x + 6y= 5 and 8x + 12y = l0 has	No Solution
7	If a= i + 2j +k, b= i -j + 4k and c = i +j + k are such that a + λb is perpendicular to c. then the value of is	-1
8	If |a| = 10, |b| = 2, and a,b = 12, then the value of |a x b| is	16
9	Consider the following statements: Statement (I): If either |a| =0 or |b| = 0, then a,b =0. Statement (II): If a x b = 0, then a is perpendicular to b. Which of the following is correct? (1) Both Statement (I) and Statement (II) are false (2) Statement (I) is true but Statement (II) is false (3) Statement (I) is false but Statement (I) is true (4) Both Statement (1I and Statement (II) are true	Statement (I) is true but Statement (II) is false
10	If a line makes angles 90, 60, and θ with x. y and z are respectively, where θ is acute, then the value of θ is	π/6
11	The equation of the line through the point (0, 1, 2) and perpendicular to the line x-1/2 = y+1/3 = z-1/-2 is	x/3 = y-1/-4 = z-2/3
12	A line passes through (-I, -3) and perpendicular to x + 6y = 5. Its x intercept is	-2
13	The length of the latus rectum of x 2 + 3y 2 = 12 is	2/3 units
14	Which of the following is not correct?	sin 2π = (sin - 2π)
15	If cos x + cos 2 x =1, then the value of sin 2 x + sin 4 x  is	0
16	The mean deviation about the mean for the data 4, 7. 8,9, 10, 12. 13, 17 is	8.5
17		1/12
18	A die has two faces each with number '1', three faces each with number '2' and one face with number '3'. If the die is rolled once, then P(1 or 3) is	1/3
19	Let A = {a, b, c}, then the number of equivalence relations on A containing (b, e) is	4
20		Both Statements I and II are true
21	sec 2 (tan -1 2) + cosec 2 (cot -1 3) =	1
22	2 cos -1 x sin -1 (2x √1 - x 2 ) is valid for all values of 'x' satisfying	0 < x < 1/√2
23	Consider the following statements: Statement (I): In a LPP, the objective function is always linear. Statement (II): In a LPP, the linear inequalities on variables are called constraints. Which of the following is correct? (1) Statement (I) is true, Statement (II) is false (2) Both Statements (I) and (II) are false (3) Statement (I) is false, Statement (II) is true (4) Statement (I) is true, Statement (II) is true	Statement (I) is true, Statement (II) is true
24	The maximum value of z= 3x +4y, subject to the constraints x + y < 40, x + 2y < 60 and x, y, >0 is	140
25	Consider the following statements. Statement (I): If E and F are two independent events, then E' and F' are also independent. 4/14 Statement (II): Two mutually exclusive events with non-zero probabilities of occurrence cannot be independent. Which of the following is correct? (1) Statement (I) is false and statement (II) is true (2) Both the statements are true (3) Both the statements are false (4) Statement (I) is true and statement (II) is false	Both the statements are true
26	If A and B are two non-mutually exclusive events such that P (A|B) = P (B|A), then	A ∩ B = +
27	Meera visits only one of the two temples A and B, in her locality. Probability that she visits temple A is 2/5, If she visits temple A, 1/3 is the probability that she meets her friend, whereas it is 2/7 if she visits temple B. Meera met her friend at one of the two temples. The probability that she met her at Temple B	3/16
28		Statement I is false but Statement II is true
29	The number of our digit even mumber that can be formed using the digits 0, I. 2 and 3 without repetition s	10
30	The number of diagonals that can be drawn in an octagon is	15
31	If the number of terms in the binomial expansion of (2x + 3) 3n is 22, then the value of n is	9
32	If 4th, 10th and 16th terms of a G.P. are x, y and z respectively, then	y = √xz
33	If A is a square matrix such that A 2 = A, then the (1-A ) 3 'is	1 + A
34	If A and B are two matrices such that AB k an identity matrix and the order of matrix B is 3 x 4, then the order of matrix A is	3 x 4
35	Which of the following statements is not correct? (1) A diagonal matrix has all diagonal elements equal to zero (2) A symmetric matrix A is a square matrix satisfying A' = A. (3) A skew-symmetric matrix has all diagonal elements equal to zero (4) A row matrix has only one row	A diagonal matrix has all diagonal elements equal to zero
36		16
37		Statement I is true but Statement II is false
38	If Z 1 and Z 2 are two non-zero complex numbers, then which of the following is not true?
39		0
40	If y= cos x/ 1 + sin x, then	Both a nd c are correct
41		a-iii, b -ii, c - iv, d -i
42		a =3, b= 1
43		continuous at x =0
44		1
45	The derivative of sin x with respect to log x in	cos x/x
46	The minimum value of 1 -sin x is	1
47	The function f(x)  = tan x - x	never increases
48
49		0
50		0
51
52
53	The area bounded by the curve y = sin (x/3), x axis, the lines x = 0 and x = 3π is	3 sq. units
54	The area of the region bounded by the curve y= x 2 and the line y = 16 is	64/3 sq units
55	General solution of the differential equation dy/dx + y tan x =sec x is	y sec x= tan x + c
56		1
57	The distance of the point P(-3,4,5) from yz plane is	3 units
58		(2, 3, 4)
59		Statement I is true Statement II is false
60		f (π /2) = 1

KCET Mathematics Question Paper 2025

Access the question paper of Maths below.

It should be noted that the questions in all the sets will be identical, with shuffling in sequence or numbering of the questions. So, more or less, the questions will be the same with a change in order of numbering. Further, the official answer key will be released by the Karnataka Examinations Authority through the official website soon; until then, the unofficial answer key here will guide the students to analyse their performances and accordingly prepare for the next stages. Also, the official answer key may be objected to, if any, but since this is an unofficial answer key, students may not be able to object to the answer key. However, it is most likely to be as precise as the official answer key with the correct answers.

KCET Answer Key 2025 and Analysis Subject-Wise |

KCET Expected Marks vs Rank 2025 |

KCET Expected Rank vs Marks 2025 |

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