CBSE Class 10 Maths Basic 2024 Question Paper 430/1/2 with Solutions

LCM (850, 500) is :

1. (A)$850\times 50$
2. (B)$17\times 500$
3. (C)$17\times 5^2\times 2^2$
4. (D)$17\times 5^3\times 2$

If the roots of quadratic equation $4x^2-5x+k=0$ are real and equal, then value of $k$ is :

1. (A)$\frac{5}{4}$
2. (B)$\frac{25}{16}$
3. (C)$-\frac{5}{4}$
4. (D)$-\frac{25}{16}$

The mean and median of a statistical data are 21 and 23 respectively. The mode of the data is :

1. (A)27
2. (B)22
3. (C)17
4. (D)23

The height and radius of a right circular cone are 24 cm and 7 cm respectively. The slant height of the cone is :

1. (A)24 cm
2. (B)31 cm
3. (C)26 cm
4. (D)25 cm

If one of the zeroes of the quadratic polynomial $(\alpha -1)x^2+\alpha x+1$ is $-3$, then the value of $\alpha$ is :

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

A card is drawn from a well shuffled deck of 52 playing cards. The probability that drawn card is a red queen, is :

1. (A)$\frac{1}{13}$
2. (B)$\frac{2}{13}$
3. (C)$\frac{1}{52}$
4. (D)$\frac{1}{26}$

If a certain variable $x$ divides a statistical data arranged in order into two equal parts, then the value of $x$ is called the :

1. (A)mean
2. (B)median
3. (C)mode
4. (D)range

Three coins are tossed together. The probability of getting exactly one tail, is :

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

If $\sin \theta =\frac{1}{3}$, then $\sec \theta$ is equal to :

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

Outer surface area of a cylindrical juice glass with radius 7 cm and height 10 cm, is :

1. (A)440 sq m
2. (B)594 sq m
3. (C)748 sq m
4. (D)1540 sq m

On a throw of a die, if getting 6 is considered success then probability of losing the game is :

1. (A)0
2. (B)1
3. (C)$\frac{1}{6}$
4. (D)$\frac{5}{6}$

The distance between the points $(2,-3)$ and $(-2,3)$ is :

1. (A)$2\sqrt{13}$ units
2. (B)5 units
3. (C)$13\sqrt{2}$ units
4. (D)10 units

For what value of $\theta$, ${\sin }^2\theta +\sin \theta +{\cos }^2\theta$ is equal to 2 ?

1. (A)$45^{\circ }$
2. (B)$0^{\circ }$
3. (C)$90^{\circ }$
4. (D)$30^{\circ }$

The diameter of a circle is of length 6 cm. If one end of the diameter is $(-4,0)$, the other end on x-axis is at :

1. (A)(0, 2)
2. (B)(6, 0)
3. (C)(2, 0)
4. (D)(4, 0)

The value of $k$ for which the pair of linear equations $5x+2y-7=0$ and $2x+ky+1=0$ don't have a solution, is :

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

For what value of $k$, the product of zeroes of the polynomial $k{x}^2-4x-7$ is 2 ?

1. (A)$-\frac{1}{14}$
2. (B)$-\frac{7}{2}$
3. (C)$\frac{7}{2}$
4. (D)$-\frac{2}{7}$

In an A.P. ; if $a=8$ and $a_{10}=-19$, then value of $d$ is :

1. (A)3
2. (B)$-\frac{11}{9}$
3. (C)$-\frac{27}{10}$
4. (D)$-3$

The mid-point of the line segment joining the points $(-1,3)$ and $\left(8,\frac{3}{2}\right)$ is :

1. (A)$\left(\frac{7}{2},-\frac{3}{4}\right)$
2. (B)$\left(\frac{7}{2},\frac{9}{2}\right)$
3. (C)$\left(\frac{9}{2},-\frac{3}{4}\right)$
4. (D)$\left(\frac{7}{2},\frac{9}{4}\right)$

Assertion (A) : If PA and PB are tangents drawn to a circle with centre O from an external point P, then the quadrilateral OAPB is a cyclic quadrilateral.
Reason (R) : In cyclic quadrilateral opposite angles are equal.

1. (A)Both, Assertion (A) and Reason (R) are true. Reason (R) explains Assertion (A) completely.
2. (B)Both, Assertion (A) and Reason (R) are true. Reason (R) does not explain 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) : Zeroes of a polynomial $p(x)=x^2-2x-3$ are $-1$ and 3.
Reason (R) : The graph of polynomial $p(x)=x^2-2x-3$ intersects $x$-axis at $(-1,0)$ and $(3,0)$.

1. (A)Both, Assertion (A) and Reason (R) are true. Reason (R) explains Assertion (A) completely.
2. (B)Both, Assertion (A) and Reason (R) are true. Reason (R) does not explain Assertion (A).
3. (C)Assertion (A) is true but Reason (R) is false.
4. (D)Assertion (A) is false but Reason (R) is true.

Prove that $6-4\sqrt{5}$ is an irrational number, given that $\sqrt{5}$ is an irrational number.

Show that $11\times 19\times 23+3\times 11$ is not a prime number.

A bag contains 4 red, 5 white and some yellow balls. If probability of drawing a red ball at random is $\frac{1}{5}$, then find the probability of drawing a yellow ball at random.

In a $△ABC$, $\angle A=90^{\circ }$. If $\tan C=\sqrt{3}$, then find the value of $\sin B+\cos C-{\cos }^{2}B$.

In the given figure, $AP\perp AB$ and $BQ\perp AB$. If OA = 15 cm, BO = 12 cm and AP = 10 cm, then find the length of BQ.

Solve the following pair of linear equations for $x$ and $y$ algebraically :
$x+2y=9$ and $y-2x=2$

Check whether the point $(-4,3)$ lies on both the lines represented by the linear equations $x+y+1=0$ and $x-y=1$.

Prove that : $\sqrt{\frac{\sec A-1}{\sec A+1}}+\sqrt{\frac{\sec A+1}{\sec A-1}}=2\text{ cosec }A$

In two concentric circles, the radii are OA = r cm and OQ = 6 cm, as shown in the figure. Chord CD of larger circle is a tangent to smaller circle at Q. PA is tangent to larger circle. If PA = 16 cm and OP = 20 cm, find the length CD.

In given figure, two tangents PT and QT are drawn to a circle with centre O from an external point T. Prove that $\angle PTQ=2\angle OPQ$.

A solid is in the form of a cylinder with hemi–spherical ends of same radii. The total height of the solid is 20 cm and the diameter of the cylinder is 14 cm. Find the surface area of the solid.

A juice glass is cylindrical in shape with hemi–spherical raised up portion at the bottom. The inner diameter of glass is 10 cm and its height is 14 cm. Find the capacity of the glass. (use $\pi =3.14$)

Two alarm clocks ring their alarms at regular intervals of 20 minutes and 25 minutes respectively. If they first beep together at 12 noon, at what time will they beep again together next time ?

The line AB intersects x-axis at A and y-axis at B. The point $P(2,-3)$ lies on AB such that AP : PB = 3 : 1. Find the co-ordinates of A and B.

The greater of two supplementary angles exceeds the smaller by $18^{\circ }$. Find measures of these two angles.

O is the centre of the circle. If AC = 28 cm, BC = 21 cm, $\angle BOD=90^{\circ }$ and $\angle BOC=30^{\circ }$, then find the area of the shaded region given in the figure.

The shadow of a tower standing on a level ground is found to be 40 m longer when the Sun's altitude is $30^{\circ }$ than when it was $60^{\circ }$. Find the height of the tower and the length of original shadow. (use $\sqrt{3}=1.73$)

The angles of depression of the top and the bottom of an 8 m tall building from the top of a multi–storeyed building are $30^{\circ }$ and $45^{\circ }$ respectively. Find the height of the multi–storeyed building and the distance between the two buildings. (use $\sqrt{3}=1.73$)

If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, then prove that other two sides are divided in the same ratio.

Sides AB and BC and median AD of a $△ABC$ are respectively proportional to sides PQ and PR and median PM of $△PQR$. Show that $△ABC\sim △PQR$.

In an A.P. if $S_n=4n^2-n$, then
(i) find the first term and common difference.
(ii) write the A.P.
(iii) which term of the A.P. is 107 ?

Gurpreet is very fond of doing research on plants. She collected some leaves from different plants and measured their lengths in mm.
The data obtained is represented in the following table :
Length (in mm) : 70-80, 80-90, 90-100, 100-110, 110-120, 120-130, 130-140
Number of leaves : 3, 5, 9, 12, 5, 4, 2
Based on the above information, answer the following questions :
(i) Write the median class of the data. (1)
(ii) How many leaves are of length equal to or more than 10 cm ? (1)
(iii) (a) Find median of the data. (2)
OR
(b) Write the modal class and find the mode of the data. (2)

The picture given below shows a circular mirror hanging on the wall with a cord. The diagram represents the mirror as a circle with centre O. AP and AQ are tangents to the circle at P and Q respectively such that AP = 30 cm and $\angle PAQ=60^{\circ }$.
Based on the above information, answer the following questions :
(i) Find the length PQ. (1)
(ii) Find m $\angle POQ$. (1)
(iii) (a) Find the length OA. (2)
OR
(b) Find the radius of the mirror. (2)

To keep the lawn green and cool, Sadhna uses water sprinklers which rotate in circular shape and cover a particular area.
The diagram below shows the circular areas covered by two sprinklers :
Two circles touch externally. The sum of their areas is $130\pi$ sq m and the distance between their centres is 14 m.
Based on above information, answer the following questions :
(i) Obtain a quadratic equation involving R and r from above. (1)
(ii) Write a quadratic equation involving only r. (1)
(iii) (a) Find the radius r and the corresponding area irrigated. (2)
OR
(b) Find the radius R and the corresponding area irrigated. (2)