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Mathematics and Statistics Board Question Paper 2025-2026 HSC Science (General) 12th Standard Board Exam Question Paper Solution

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Mathematics and Statistics [Board Question Paper]
Marks: 80 Maharashtra State Board
HSC Science (General)
HSC Arts (English Medium)
HSC Science (Electronics)
HSC Science (Computer Science)
HSC Arts (Marathi Medium)

Academic Year: 2025-2026
Date & Time: 21st February 2026, 11:00 am
Duration: 3h
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General instructions:

The question paper is divided into FOUR sections.

  1. Section A: Q.1 contains Eight multiple choice tyре questions, each carrying Two marks.
    Q. 2 contains Four very short answer type questions, each carrying One mark.
  2. Section B: Q.3 to Q.14 contain Twelve short answer type questions, each carrying Two marks. (Attempt any Eight)
  3. Section C: Q.15 to Q.26 contain twelve short-answer type questions, each carrying three marks. (Attempt any Eight)
  4. Section D: Q.27 to Q.34 contain Eight long answer type questions, each carrying Four marks. (Attempt any Five)
  5. Use of log table is allowed. Use of calculator is not allowed.
  6. Figures to the right indicate full marks.
  7. Use of graph paper is not necessary. Only rough sketch of graph is expected.
  8. For each multiple choice type of question, only the first attempt will be considered for evaluation.
  9. Start answer to each section on a new page.

SECTION - A
[16]1. | Select and write the correct answer of the following multiple choice type of questions:
[2]1. (i)

The converse of contrapositive of ∼p → q is ______.

q → p

∼q → p

p → ∼q

∼q → ∼p

Concept: undefined - undefined
Chapter: [1] Mathematical Logic
[2]1. (ii)

If A = `[(2, -4),(3, 1)]`, then the adjoint of matrix A is ______.

`[(-1, 3),(-4, 1)]`

`[(1, 4),(-3, 2)]`

`[(1, 3),(4, -2)]`

`[(-1, -3),(-4, 2)]`

Concept: undefined - undefined
Chapter:
[2]1. (iii)

If tan–1 (2x) + tan–1 (3x) = `π/4`, then x = ______.

–1

`1/3`

`1/6`

`3/2`

Concept: undefined - undefined
Chapter: [3] Trigonometric Functions
[2]1. (iv)

The angle between the line `vecr = (hati + 2hatj + hatk) + lambda(hati + hatj + hatk)` and the plane `vecr * (2hati - hatj + hatk) = 8` is ______.

`sin^-1 (sqrt(2)/3)`

`sin^-1 (sqrt(3)/2)`

`sin^-1 (1/2)`

`sin^-1 (1/sqrt(2))`

Concept: undefined - undefined
Chapter:
[2]1. (v)

If y = sec (tan−1x), then `dy/dx` at x = 1 is ______.

`1/2`

1

`1/sqrt(2)`

`sqrt(2)`

Concept: undefined - undefined
Chapter: [8] Differentiation
[2]1. (vi)

The approximate value of the function f(x) = x3 – 3x + 5 at x = 1.99 is ______.

6.09

6.91

7.09

7.91

Concept: undefined - undefined
Chapter:
[2]1. (vii)

`int_1^2 (1)/(x^2) e^(1/x) * dx` = ______.

`sqrt(e) + 1`

`sqrt(e) - 1`

`sqrt(e)(sqrt(e) - 1)`

`(sqrt(e) - 1)/e`

Concept: undefined - undefined
Chapter:
[2]1. (viii)

If the p.d.f. of a continuous r.v. X is

`f(x) = {{:((x  +  2)/18",", "for" -2 < x < 4),(= 0",", "otherwise"):}`

then P(|X| < 1) = ______.

`1/9`

`2/9`

`1/27`

`2/27`

Concept: undefined - undefined
Chapter:
[4]2. | Answer the following questions:
[1]2. (i)

Write the dual of (p ∨ q) ∨ r ≡ p ∨ (q ∨ r)

Concept: undefined - undefined
Chapter:
[1]2. (ii)

For the principal value, evaluate of the following:

`cos^-1  1/2 + 2 sin^-1 (1/2)`

Concept: undefined - undefined
Chapter:
[1]2. (iii)

Evaluate: `int (2x)/(1 + x^2) dx`

Concept: undefined - undefined
Chapter:
[1]2. (iv)

Write the degree of the differential equation

(y")2 + 3(y")3 + 3xy' + 5y = 0

Concept: undefined - undefined
Chapter:
SECTION - B (16 Marks)
Attempt any EIGHT of the following questions:
[2]3.

Construct the switching circuit of the following:

(∼ p ∧ q) ∨ (p ∧ ∼ r)

Concept: undefined - undefined
Chapter: [1] Mathematical Logic
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[2]4.

In ΔABC, prove that a(b cos C – c cos B) = b2 – c2.

Concept: undefined - undefined
Chapter:
[2]5.

Find the general solution of the following equation:

4 cos2 θ  = 3

Concept: undefined - undefined
Chapter: [3] Trigonometric Functions
[2]6.

Find k, if the sum of the slopes of the lines represented by x2 + kxy – 3y2 = 0 is twice their product.

Concept: undefined - undefined
Chapter: [4] Pair of Straight Lines
[2]7.

Find the value of p, for which the vectors `veca = 3hati + 2hatj + 9hatk` and `vecb = hati + phatj + 3hatk` are perpendicular to each other.

Concept: undefined - undefined
Chapter:
[2]8.

Find the vector equation of the line passing through the points A(1, 2, 3) and B(2, 3, 4).

Concept: undefined - undefined
Chapter:
[2]9.

Find `dy/dx`, if `sqrt(x) + sqrt(y) = sqrt(a)`.

Concept: undefined - undefined
Chapter: [8] Differentiation
[2]10.

Find `(d^2y)/(dx^2)`, if y = x3 + 7x2 – 2x – 9.

Concept: undefined - undefined
Chapter:
[2]11.

Test whether the function f(x) = x3 + 6x2 + 12x – 7 is increasing or decreasing for all x ∈ R.

Concept: undefined - undefined
Chapter:
[2]12.

A stone is dropped into a quiet lake and waves in the form of circles are generated. Radius of the circular wave increases at the rate of 3 cm/sec. How fast the area enclosed is increasing when the radius is 8 cm?

Concept: undefined - undefined
Chapter:
[2]13.

`int sqrt(1 + sin2x)  dx`

Concept: undefined - undefined
Chapter: [10] Indefinite Integration
[2]14.

Given that X ~ B(n, p), if n = 10, E(X) = 8, find Var(X).

Concept: undefined - undefined
Chapter: [14] Probability Distributions
SECTION - C (24 Marks)
Attempt any EIGHT of the following questions:
[3]15.

Examine whether the statement pattern (p ∧ q) and (∼ p ∨ ∼ q) is a tautology or contradiction or contingency.

Concept: undefined - undefined
Chapter:
[3]16.

In ΔABC, if ∠A = 45°, ∠B = 60° then find the ratio of its sides.

Concept: undefined - undefined
Chapter: [3] Trigonometric Functions
[3]17.

If two of the vertices of a triangle are A (3, 1, 4) and B(– 4, 5, –3) and the centroid of the triangle is at G (–1, 2, 1), then find the coordinates of the third vertex C of the triangle.

Concept: undefined - undefined
Chapter:
[3]18.

If D, E, F are the midpoints of the sides BC, CA, AB of a triangle ABC, prove that `bar"AD" + bar"BE" + bar"CF" = bar0`.

Concept: undefined - undefined
Chapter:
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[3]19.

Show that the lines `vecr = (hati + hatj - hatk) + lambda(2hati - 2hatj + hatk)` and `vecr = (4hati - 3hatj + 2hatk) + µ(hati - 2hatj + 2hatk)` intersect each other.

Concept: undefined - undefined
Chapter:
[3]20.

Find the cartesian equation of the plane `vecr = (hati - hatj) + λ(hati + hatj + hatk) + µ(hati - 2hatj + 3hatk)`.

Concept: undefined - undefined
Chapter:
[3]21.

If y = f(u) is a differentiable function of u and u = g(x) is a differentiable function of x then prove that y = f(g(x)) is a differentiable function of x and `(dy)/(dx) = (dy)/(du) * (du)/(dx)`.

Concept: undefined - undefined
Chapter:
[3]22.

Verify Lagrange’s mean value theorem for the following function:

f(x) = log x, on [1, e]

Concept: undefined - undefined
Chapter: [9] Applications of Derivatives
[3]23.

Evaluate the following : `int sinx/(sin 3x).dx`

Concept: undefined - undefined
Chapter: [10] Indefinite Integration
[3]24.

Solve the D.E. 3ex tan y dx + (1 + ex) sec2y dy = 0.

Concept: undefined - undefined
Chapter:
[3]25.

Find expected value and variance of X, where X is number obtained on uppermost face when a fair die is thrown.

Concept: undefined - undefined
Chapter: [14] Probability Distributions
[3]26.

A pair of dice is thrown 4 times. If getting a doublet is considered as success, find the probability of two successes.

Concept: undefined - undefined
Chapter: [15] Binomial Distribution
SECTION - D (20 Marks)
Attempt any FIVE of the following questions:
[4]27.

If A = `[(1, 2),(3, 4)]`, prove that A · (adj A) = (adj A) · A = |A| · I

Concept: undefined - undefined
Chapter:
[4]28.

Show that every homogeneous equation of degree two in x and y, i.e., ax2 + 2hxy + by2 = 0, represents a pair of lines passing through the origin, if h2 ab 0.

Concept: undefined - undefined
Chapter:
[4]29.

Let `A(bara)` and `B(barb)` are any two points in the space and `"R"(bar"r")` be a point on the line segment AB dividing it internally in the ratio m : n, then prove that `barr = (mbarb + nbara)/(m + n)`.

Concept: undefined - undefined
Chapter:
[4]30.

Solve the L.P.P. graphically:

Minimize: z = 5x + 2у,

Subject to: 5x + y ≥ 10, x + y ≥ 6, 

                  x ≥ 0, y ≥ 0

Concept: undefined - undefined
Chapter:
[4]31.

Evaluate: `int (3x^2 + 4x - 5)/((x^2 - 1)(x + 2)) dx`

Concept: undefined - undefined
Chapter:
[4]32.

Prove that: `int_a^b f(x)dx = int_a^b f(a + b - x) * dx`. Hence, find `int_(π/6)^(π/3) sin^2x * dx`

Concept: undefined - undefined
Chapter:
[4]33.

Solve the following:

Find the area enclosed between the circle x2 + y2 = 1 and the line x + y = 1, lying in the first quadrant.

Concept: undefined - undefined
Chapter: [12] Application of Definite Integration
[4]34.

Solve the following differential equation:

`x^2 dy/dx = x^2 + xy + y^2`

Concept: undefined - undefined
Chapter: [13] Differential Equations

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Maharashtra State Board previous year question papers 12th Standard Board Exam Mathematics and Statistics with solutions 2025 - 2026

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