The CBSE Class 10 Maths Exam 2025 was conducted on March 10, 2025. As per early student feedback, the question paper was of moderate difficulty. To help students evaluate their performance, this article provides the CBSE Class 10 Maths Answer Key 2025, prepared by subject experts. This answer key enables students to cross-check their responses, estimate scores, and learn from their mistakes, ultimately aiding in better preparation for upcoming exams.
CBSE Class 10 Maths Exam 2025: Key Highlights
The question paper consisted of 38 questions, carrying a total of 80 marks. The duration of the exam was 3 hours, and all questions were compulsory, with some having internal choices.
CBSE Class 10 Maths Answer Key 2025 (Set-1 – Maths STANDARD)
- √0.4 is a/an
Answer: (D) Irrational number - Which of the following cannot be the unit digit of 8ⁿ, where n is a natural number?
Answer: (C) 0 - Which of the following quadratic equations has real and equal roots?
Answer: (B) x² + x = 0 - If the zeroes of the polynomial ax² + bx + 2a/b are reciprocals of each other, the value of b is:
Answer: (B) 1/2 - Distance of the point A(-3, -4) from the x-axis is:
Answer: (B) 4 - In the given figure, if PQ || XY || BC, AP = 2 cm, PX = 1.5 cm, BX = 4 cm, and QY = 0.75 cm, then AQ + CY =
Answer: (B) 4.5 cm - Given △ABC ~ △PQR, ∠A = 30°, ∠Q = 90°, then ∠R + ∠B =
Answer: (C) 150° - Two coins are tossed simultaneously. Probability of getting at least one head:
Answer: (C) 3/4 - In the figure, PA and PB are tangents from P to a circle with center O, ∠P = 90°, AB = 3√2 cm. Diameter of the circle is:
Answer: (D) 6 cm - For a circle of radius 5 cm, which statement is true?
Answer: (B) Distance between every pair of parallel tangents is 10 cm - In the figure, TS is a tangent to a circle with center O. The value of 2x° is:
Answer: (B) 45 - If y = (2 tan 30°) / (1 – tan²30°), then x : y = ?
Answer: (C) 2 : 1 - A peacock on a 10 m high tree sees a snake 10√3 m away from the base. Angle of depression is:
Answer: (C) 30° - If a cone of maximum possible volume is carved from a cylinder, then ratio of remaining wood volume to cone volume is:
Answer: (D) 2 : 1 - Mode is 10, and mean + median = 25. The mean and median are:
Answer: (C) 10 and 15 - If most students score 52 marks out of 80, then:
Answer: (C) 52 is the mode - The system of equations 2x + 1 = 0 and 3y − 5 = 0 has:
Answer: (A) Unique solution - In △ABC, right-angled at A, if sinB = 1/4, then secB =
Answer: (D) 4/√15
Assertion-Reason Based Questions
- Assertion (A): HCF of two primes is 1, LCM is p + q.
Reason (R): HCF × LCM = product of the numbers.
Answer: (D) A is false, but R is true - Assertion (A): E₁ (number <3) and E₂ (number >3) are complementary events.
Reason (R): P(E) + P(F) = 1 for complementary events.
Answer: (D) A is false, but R is true
CBSE Class 10 Maths Answer Key 2025 (Set-2 – Maths STANDARD)
- The system of equations x + 5 = 0 and 2x − 1 = 0 has:
Answer: (B) Unique solution - In △ABC, right-angled at A, if sinB = 1/4, then secB =
Answer: (B) √15/4 - √0.4 is a/an
Answer: (D) Irrational number - Which of the following cannot be the unit digit of 8ⁿ?
Answer: (B) 2 - Which quadratic equation has real and distinct roots?
Answer: (A) x² + 2x = 0 - If the zeroes of ax² + bx + 2a/b are reciprocals, value of b is:
Answer: (B) 1/2 - Distance of point (a, -b) from x-axis is:
Answer: (C) b