CBSE Class 10 Maths Basic 2025 Question Paper 430/6/3 with Solutions

In two concentric circles centred at O, a chord AB of the larger circle touches the smaller circle at C. If OA = 3.5 cm, OC = 2.1 cm, then AB is equal to

1. (A)5.6 cm
2. (B)2.8 cm
3. (C)3.5 cm
4. (D)4.2 cm

Three coins are tossed together. The probability that at least one head comes up, is

1. (A)$\frac{3}{8}$
2. (B)$\frac{7}{8}$
3. (C)$\frac{1}{8}$
4. (D)$\frac{3}{4}$

The volume of air in a hollow cylinder is 450 cm${}^3$. A cone of same height and radius as that of cylinder is kept inside it. The volume of empty space in the cylinder is

1. (A)225 cm${}^3$
2. (B)150 cm${}^3$
3. (C)250 cm${}^3$
4. (D)300 cm${}^3$

If the length of the shadow of a tower is $\sqrt{3}$ times its height, then the angle of elevation of the sun is

1. (A)$45^{\circ }$
2. (B)$30^{\circ }$
3. (C)$60^{\circ }$
4. (D)$0^{\circ }$

$22^{nd}$ term of the A.P. : $\frac{3}{2},\frac{1}{2},\frac{-1}{2},\frac{-3}{2}$, ........ is

1. (A)$\frac{45}{2}$
2. (B)$-9$
3. (C)$\frac{-39}{2}$
4. (D)$-21$

In the given graph, the polynomial $p(x)$ is shown. Number of zeroes of $p(x)$ is

1. (A)3
2. (B)2
3. (C)1
4. (D)4

If probability of happening of an event is 57%, then probability of non-happening of the event is

1. (A)0.43
2. (B)0.57
3. (C)53%
4. (D)$\frac{1}{57}$

OAB is sector of a circle with centre O and radius 7 cm. If length of arc $\stackrel{⌢}{\mathrm{AB}}=\frac{22}{3}$ cm, then $\angle AOB$ is equal to

1. (A)${\left(\frac{120}{7}\right)}^{\circ }$
2. (B)$45^{\circ }$
3. (C)$60^{\circ }$
4. (D)$30^{\circ }$

If the sum of first n terms of an A.P. is given by $S_n=\frac{n}{2}(3n+1)$, then the first term of the A.P. is

1. (A)2
2. (B)$\frac{3}{2}$
3. (C)4
4. (D)$\frac{5}{2}$

To calculate mean of a grouped data, Rahul used assumed mean method. He used d = $(x-A)$, where A is assumed mean. Then $\overline{x}$ is equal to

1. (A)A + $\overline{d}$
2. (B)A + h$\overline{d}$
3. (C)h (A + $\overline{d}$)
4. (D)A $-$ h$\overline{d}$

The point (3, $-$ 5) lies on the line $mx-y=11$. The value of m is

1. (A)3
2. (B)$-2$
3. (C)8
4. (D)2

If $\sqrt{3}\sin \theta =\cos \theta$, then value of $\theta$ is

1. (A)$\sqrt{3}$
2. (B)$60^{\circ }$
3. (C)$\frac{1}{\sqrt{3}}$
4. (D)$30^{\circ }$

ABCD is a rectangle with its vertices at (2, $-2$), (8, 4), (4, 8) and ($-2$, 2) taken in order. Length of its diagonal is

1. (A)$4\sqrt{2}$
2. (B)$6\sqrt{2}$
3. (C)$4\sqrt{26}$
4. (D)$2\sqrt{26}$

Two dice are rolled together. The probability of getting a sum more than 9 is

1. (A)$\frac{5}{6}$
2. (B)$\frac{5}{18}$
3. (C)$\frac{1}{6}$
4. (D)$\frac{1}{2}$

In $△ABC$, DE $\parallel$ BC. If AE = $(2x+1)$ cm, EC = 4 cm, AD = $(x+1)$ cm and DB = 3 cm, then value of $x$ is

1. (A)1
2. (B)$\frac{1}{2}$
3. (C)$-1$
4. (D)$\frac{1}{3}$

The value of k for which the system of equations $3x-7y=1$ and $kx+14y=6$ is inconsistent, is

1. (A)$-6$
2. (B)$\frac{2}{3}$
3. (C)6
4. (D)$\frac{-3}{2}$

In the given figure, PA is tangent to a circle with centre O. If $\angle APO=30^{\circ }$ and OA = 2.5 cm, then OP is equal to

1. (A)2.5 cm
2. (B)5 cm
3. (C)$\frac{5}{\sqrt{3}}$ cm
4. (D)2 cm

Two identical cones are joined as shown in the figure. If radius of base is 4 cm and slant height of the cone is 6 cm, then height of the solid is

1. (A)8 cm
2. (B)$4\sqrt{5}$ cm
3. (C)$2\sqrt{5}$ cm
4. (D)12 cm

Assertion (A) : $(a+\sqrt{b})\cdot (a-\sqrt{b})$ is a rational number, where a and b are positive integers.
Reason (R) : Product of two irrationals is always rational.

1. (A)Both Assertion (A) and Reason (R) are true and Reason (R) is correct explanation of Assertion (A).
2. (B)Both Assertion (A) and Reason (R) are true, but Reason (R) is not correct explanation for Assertion (A).
3. (C)Assertion (A) is true, but Reason (R) is false.
4. (D)Assertion (A) is false, but Reason (R) is true.

Assertion (A) : $△ABC\sim △PQR$ such that $\angle A=65^{\circ }$, $\angle C=60^{\circ }$. Hence $\angle Q=55^{\circ }$.
Reason (R) : Sum of all angles of a triangle is $180^{\circ }$.

1. (A)Both Assertion (A) and Reason (R) are true and Reason (R) is correct explanation of Assertion (A).
2. (B)Both Assertion (A) and Reason (R) are true, but Reason (R) is not correct explanation for Assertion (A).
3. (C)Assertion (A) is true, but Reason (R) is false.
4. (D)Assertion (A) is false, but Reason (R) is true.

A box contains 120 discs, which are numbered from 1 to 120. If one disc is drawn at random from the box, find the probability that
(i) it bears a 2– digit number
(ii) the number is a perfect square.

Evaluate : $\frac{\cos 45^{\circ }}{\tan 30^{\circ }+\sin 60^{\circ }}$

Verify that $\sin 2A=\frac{2\tan A}{1+{\tan }^{2}A}$, for $A=30^{\circ }$.

Solve the quadratic equation $\sqrt{3}{x}^2+10x+7\sqrt{3}=0$ using quadratic formula.

Find the nature of roots of the equation $4x^2-4a^{2}x+a^4-b^4=0$, $b\ne 0$

Using prime factorisation, find the HCF of 180, 140 and 210.

The perimeters of two similar triangles are 22 cm and 33 cm respectively. If one side of first triangle is 9 cm, then find the length of corresponding side of the second triangle.

Given that $\sqrt{5}$ is an irrational number, prove that $2+3\sqrt{5}$ is an irrational number.

Find the A.P. whose third term is 16 and seventh term exceeds the fifth term by 12. Also, find the sum of first 29 terms of the A.P.

Find the sum of first 20 terms of an A.P. whose $n^{th}$ term is given by $a_n=5+2n$. Can 52 be a term of this A.P. ?

Prove that $\frac{\sin \theta }{1+\cos \theta }+\frac{1+\cos \theta }{\sin \theta }=2\text{cosec}\theta$.

Find length and breadth of a rectangular park whose perimeter is 100 m and area is 600 m${}^2$.

AB and CD are diameters of a circle with centre O and radius 7 cm. If $\angle BOD=30^{\circ }$, then find the area and perimeter of the shaded region.

$\alpha$, $\beta$ are zeroes of the polynomial $3x^2-8x+k$. Find the value of k, if ${\alpha }^2+{\beta }^2=\frac{40}{9}$.

Find the zeroes of the polynomial $2x^2+7x+5$ and verify the relationship between its zeroes and co-efficients.

Find ‘mean’ and ‘mode’ marks of the following data :
Marks: 0 – 5, 5 – 10, 10 – 15, 15 – 20, 20 – 25, 25 – 30
Number of students: 2, 3, 8, 15, 14, 8

Solve the following pair of linear equations by graphical method :
$2x+y=9$ and $x-2y=2$

Nidhi received simple interest of ₹ 1,200 when invested ₹ $x$ at 6% p.a. and ₹ y at 5% p.a. for 1 year. Had she invested ₹ $x$ at 3% p.a. and ₹ y at 8% p.a. for that year, she would have received simple interest of ₹ 1,260. Find the values of $x$ and y.

The given figure shows a circle with centre O and radius 4 cm circumscribed by $△ABC$. BC touches the circle at D such that BD = 6 cm, DC = 10 cm. Find the length of AE.

PA and PB are tangents drawn to a circle with centre O.
If $\angle AOB=120^{\circ }$ and OA = 10 cm, then
(i) Find $\angle OPA$. (1)
(ii) Find the perimeter of $△OAP$. (3)
(iii) Find the length of chord AB. (1)

A drone is flying at a height of h metres. At an instant it observes the angle of elevation of top of an industrial turbine as $60^{\circ }$ and angle of depression of foot of the turbine as $30^{\circ }$. If height of turbine is 200 metres, find the value of h and the distance of drone from the turbine.
(Use $\sqrt{3}=1.73$)

A triangular window of a building is shown above. Its diagram represents a $△ABC$ with $\angle A=90^{\circ }$ and AB = AC. Points P and R trisect AB and PQ $\parallel$ RS $\parallel$ AC.
Based on the above, answer the following questions :
(i) Show that $△BPQ\sim △BAC$. (1)
(ii) Prove that PQ $=\frac{1}{3}$AC. (1)
(iii) (a) If AB = 3 m, find length BQ and BS. Verify that BQ $=\frac{1}{2}$BS. (2)
OR
(iii) (b) Prove that BR${}^2$ + RS${}^2$ $=\frac{4}{9}$BC${}^2$. (2)

Gurveer and Arushi built a robot that can paint a path as it moves on a graph paper. Some co-ordinate of points are marked on it. It starts from (0, 0), moves to the points listed in order (in straight lines) and ends at (0, 0).
Arushi entered the points P(8, 6), Q(12, 2) and S($-$ 6, 6) in order. The path drawn by robot is shown in the figure.
Based on the above, answer the following questions :
(i) Determine the distance OP. (1)
(ii) QS is represented by equation $2x+9y=42$. Find the co-ordinates of the point where it intersects y – axis. (1)
(iii) (a) Point R(4.8, y) divides the line segment OP in a certain ratio, find the ratio. Hence, find the value of y. (2)
OR
(iii) (b) Using distance formula, show that $\frac{PQ}{OS}=\frac{2}{3}$. (2)

A hemispherical bowl is packed in a cuboidal box. The bowl just fits in the box. Inner radius of the bowl is 10 cm. Outer radius of the bowl is 10.5 cm.
Based on the above, answer the following questions :
(i) Find the dimensions of the cuboidal box. (1)
(ii) Find the total outer surface area of the box. (1)
(iii) (a) Find the difference between the capacity of the bowl and the volume of the box. (use $\pi =3.14$) (2)
OR
(iii) (b) The inner surface of the bowl and the thickness is to be painted. Find the area to be painted. (2)