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CBSE Class 10 Maths Standard 2025 Question Paper 30/5/2 with Solutions

All 44 questions from the CBSE Class 10 Mathematics Standard board paper, Set 30/5/2 (2025), with answers and step-by-step solutions. Total 80 marks. Tap “Show answer & solution” under any question.

Set 30/1/1Set 30/1/2Set 30/1/3Set 30/2/1Set 30/2/2Set 30/2/3Set 30/3/1Set 30/3/2Set 30/3/3Set 30/4/1Set 30/4/2Set 30/4/3Set 30/5/1Set 30/5/2Set 30/5/3Set 30/6/1Set 30/6/2Set 30/6/3
Q11 markMCQStatistics

Following data shows the marks obtained by 100 students in a class test :
Marks obtained: 20, 29, 28, 33, 42, 38, 43, 25
Number of students: 6, 28, 24, 15, 2, 4, 1, 20
The median will be the average of which two observations ?

  1. (A)29 and 33
  2. (B)25 and 28
  3. (C)28 and 29
  4. (D)33 and 38
Show answer & solution
Answer: (C) 28 and 29
  1. Arrange marks in ascending order with cumulative frequencies:
  2. 20 (6), 25 (26), 28 (50), 29 (78), 33 (93), 38 (97), 42 (99), 43 (100)
  3. (even), so median = average of 50th and 51st observations.
  4. 50th observation = 28, 51st observation = 29.
Q21 markMCQProbability

The probability of getting a composite number greater than 3 on throwing a die is

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (B)
  1. Composite numbers greater than 3 on a die: 4, 6 (2 outcomes).
Q31 markMCQReal Numbers

is a/an

  1. (A)positive rational number
  2. (B)negative rational number
  3. (C)positive irrational number
  4. (D)negative irrational number
Show answer & solution
Answer: (A) positive rational number
  1. Sum , which is a positive rational number.
Q41 markMCQReal Numbers

Let and , where are prime numbers. If LCM of and is , then the value of is

  1. (A)
  2. (B)1
  3. (C)3
  4. (D)
Show answer & solution
Answer: (B) 1
  1. LCM takes the highest power of each prime.
  2. Power of :
  3. Power of :
Q51 markMCQReal Numbers

For any prime number , if divides , where is any real number then also divides

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (A)
  1. Theorem: if a prime divides (for a positive integer ), then divides .
  2. Hence divides .

The point P divides the line segment AB in the ratio 3 : 1 as shown below :
The value of is

Diagram for CBSE 2025 Class 10 Maths question 6
  1. (A)3
  2. (B)
  3. (C)4
  4. (D)
Show answer & solution
Answer: (C) 4
  1. ; let , .
  2. , so

If has two real and distinct roots, then the value of can be

  1. (A)0
  2. (B)4
  3. (C)3
  4. (D)
Show answer & solution
Answer: (D)
  1. Real and distinct roots:
  2. So or .
  3. Among the options only works.

Which of the following equations is a quadratic equation ?

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (B)
  1. (A) : linear.
  2. (B) : quadratic.
  3. (C) is not a polynomial equation of degree 2.
  4. (D) : cubic.
  5. So (B).
Q91 markMCQProbability

A piggy bank contains ₹ 1 coins and ₹ 2 coins in the ratio 9 : 11 respectively. The piggy bank is accidently dropped and a coin pops out of it. The probability that it is a ₹ 2 coin is

  1. (A)
  2. (B)0.45
  3. (C)0.55
  4. (D)
Show answer & solution
Answer: (C) 0.55
  1. Let ₹ 1 coins and ₹ 2 coins ; total .
Q101 markMCQTriangles

Which of the following statements is false ?

  1. (A)Two right triangles are always similar.
  2. (B)Two squares are always similar.
  3. (C)Two equilateral triangles are always similar.
  4. (D)Two circles are always similar.
Show answer & solution
Answer: (A) Two right triangles are always similar.
  1. Squares, equilateral triangles and circles each have a fixed shape, so any two are similar.
  2. Two right triangles need not have equal acute angles (e.g. -- and --), so (A) is false.
Q111 markMCQTriangles

In the adjoining figure, ABCD is a trapezium in which . If , then

Diagram for CBSE 2025 Class 10 Maths question 11
  1. (A)2 : 3
  2. (B)3 : 2
  3. (C)1 : 3
  4. (D)1 : 2
Show answer & solution
Answer: (D) 1 : 2
  1. , so .
  2. Since , the parallel lines cut the two transversals proportionally.

The value of is same as the value of

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (B)
Q131 markMCQCircles

Which of the following statements is false ?

  1. (A)Infinite number of tangents can be drawn to a circle.
  2. (B)Infinite number of tangents can be drawn to a circle from a point outside the circle.
  3. (C)Infinite number of secants can be drawn to a circle from a point outside the circle.
  4. (D)Angle between tangent and diameter at point of contact is .
Show answer & solution
Answer: (B) Infinite number of tangents can be drawn to a circle from a point outside the circle.
  1. From a point outside a circle exactly two tangents can be drawn.
  2. So (B) is false; the other three statements are true.
Q141 markMCQCircles

In the adjoining figure, PA and PB are tangents to a circle with centre O. The measure of angle APB is

Diagram for CBSE 2025 Class 10 Maths question 14
  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. Reflex , so .
  2. (radius tangent).

An observer 1.8 m tall stands away from a chimney at a distance of 38.2 m along the ground. The angle of elevation of top of chimney from the eyes of observer is . The height of chimney above the ground is

  1. (A)38.2 m
  2. (B)36.4 m
  3. (C)40 m
  4. (D) m
Show answer & solution
Answer: (C) 40 m
  1. Height of chimney above eye level m
  2. Height of chimney m
Q161 markMCQCircles

In the adjoining figure, the sum of radii of two concentric circles is 16 cm. The length of chord AB which touches the inner circle at P is 16 cm. The difference of the radii of the given circles is

Diagram for CBSE 2025 Class 10 Maths question 16
  1. (A)8 cm
  2. (B)4 cm
  3. (C)2 cm
  4. (D)3 cm
Show answer & solution
Answer: (B) 4 cm
  1. Let radii be (outer) and (inner). and P is the midpoint of AB, so cm.
  2. cm

A cone of height 12 cm and slant height 13 cm is surmounted on a hemisphere having radius equal to that of cone. The entire height of the solid is

  1. (A)17 cm
  2. (B)18 cm
  3. (C)22 cm
  4. (D)23 cm
Show answer & solution
Answer: (A) 17 cm
  1. Radius of cone cm = radius of hemisphere.
  2. Total height cm
Q181 markMCQStatistics

If median + mean = mode; is the empirical relationship between mean, median and mode, then the value of is

  1. (A)6
  2. (B)3
  3. (C)2
  4. (D)1
Show answer & solution
Answer: (C) 2
  1. Empirical relation: Mode Median Mean, i.e. Median Mean Mode.
Q191 markAssertion–ReasonArithmetic Progressions

Assertion (A) : For an A.P., 3,6,9, ..., 198, term from the end is 168.
Reason (R) : If 'a' and '' are the first term and last term of an A.P. with common difference 'd', then term from the end of the given A.P. is .

  1. (A)Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  2. (B)Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of (A).
  3. (C)Assertion (A) is true, but Reason (R) is false.
  4. (D)Assertion (A) is false, but Reason (R) is true.
Show answer & solution
Answer: (D) Assertion (A) is false, but Reason (R) is true.
  1. R is the standard result: term from the end . R is true.
  2. Here , : term from the end . A is false.
Q201 markAssertion–ReasonIntroduction to Trigonometry

Assertion (A) : For an acute angle , .
Reason (R) : for all values of .

  1. (A)Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  2. (B)Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of (A).
  3. (C)Assertion (A) is true, but Reason (R) is false.
  4. (D)Assertion (A) is false, but Reason (R) is true.
Show answer & solution
Answer: (C) Assertion (A) is true, but Reason (R) is false.
  1. ; for acute , . A is true.
  2. The correct identity is , so R is false.
Q212 marksVery Short AnswerTriangles

AD and PS are angle bisectors of and of triangles ABC and PQR. If , prove that .

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Answer: Proved.
  1. and .
  2. AD and PS bisect and , so .
  3. In and : and .
  4. By AA similarity, .
Q222 marksVery Short AnswerProbability

All the face cards are removed from the pack of 52 cards and a card is drawn at random from the remaining cards. Find the probability that the card so drawn is
(i) a spade.
(ii) not an ace.

Show answer & solution
Answer: (i) (ii)
  1. Remaining cards .
  2. (i) Spades left .
  3. (ii) Aces , so non-aces .

The cost of 2 kg apples and 1 kg of grapes on a day was found to be ₹ 320. The cost of 4 kg apples and 2 kg grapes was found to be ₹ 600. If cost of 1 kg of apples and 1 kg of grapes is ₹ and ₹ respectively, represent the given situation algebraically as a system of equations and check whether the system so obtained is consistent or not.

Show answer & solution
Answer: , ; the system is inconsistent.
  1. Equations: and
  2. , ,
  3. , so the lines are parallel.
  4. The system has no solution: it is inconsistent.
OR
Q23 (OR) (OR)2 marksVery Short AnswerPair of Linear Equations in Two Variables

Solve for and :
and

Show answer & solution
Answer: ,
  1. Multiply the first equation by : ... (1)
  2. Multiply the second equation by : ... (2)
  3. (1) (2):
  4. Then
  5. Check: ✓
Q242 marksVery Short AnswerCoordinate Geometry

The coordinates of the end points of the line segment AB are and . P is the point on AB such that . Find the coordinates of point P.

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Answer:
  1. , so .
Q252 marksVery Short AnswerIntroduction to Trigonometry

It is given that . Use it to find the value of .

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Answer:
OR
Q25 (OR) (OR)2 marksVery Short AnswerIntroduction to Trigonometry

If , then express and in terms of .

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Answer: ,
  1. (A acute)
Q263 marksShort AnswerIntroduction to Trigonometry

Prove the following trigonometric identity :

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Answer: Proved.
  1. LHS
  2. RHS
  3. LHS = RHS. Proved.
OR
Q26 (OR) (OR)3 marksShort AnswerIntroduction to Trigonometry

Let and be acute angles such that and . Find the value of .

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Answer:
  1. Solving: ,
Q273 marksShort AnswerCircles

In the adjoining figure, and are parallel tangents to a circle with centre O. Another tangent AB touches the circle at C intersecting at A and at B. Prove that AB subtends right angle at the centre of the circle; or .

Diagram for CBSE 2025 Class 10 Maths question 27
Show answer & solution
Answer: Proved.
  1. Let XY touch the circle at P and XY at Q. Join OC.
  2. In and : (radii), (tangents from A), OA common. So the triangles are congruent (SSS) and , i.e. .
  3. Similarly , so .
  4. and AB is a transversal, so (co-interior angles).
  5. In : . Proved.
Q283 marksShort AnswerReal Numbers

Prove that is an irrational number.

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Answer: Proved.
  1. Suppose is rational: , where are coprime integers, .
  2. Then , so 3 divides , hence 3 divides . Let .
  3. , so 3 divides , hence 3 divides .
  4. So 3 is a common factor of and , contradicting that they are coprime.
  5. Hence is irrational.
OR
Q28 (OR) (OR)3 marksShort AnswerReal Numbers

State true or false for each of the following statements and justify in each case :
(i) is a composite number.
(ii) is a composite number.

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Answer: (i) True (ii) False
  1. (i) .
  2. It has factors other than 1 and itself, so it is composite. True.
  3. (ii) .
  4. 211 is not divisible by any prime (2, 3, 5, 7, 11, 13), so 211 is prime. False.
Q293 marksShort AnswerPolynomials

Obtain the zeroes of the polynomial . Hence, obtain a polynomial each of whose zeroes is one less than each of the zero of .

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Answer: Zeroes: and ; required polynomial: , e.g.
  1. Zeroes: and
  2. New zeroes: and
  3. Sum , product
  4. Polynomial: , i.e.

Solve the following system of equations graphically :
and . Hence, write the coordinates of the points where given lines meet y-axis.

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Answer: , ; the lines meet the y-axis at (0, 5) and (0, )
  1. Line 1: ; points (0, 5), (1, 3), (2, 1)
  2. Line 2: ; points (0, ), (1, ), (2, 1)
  3. Plotting, the lines intersect at (2, 1), so , .
  4. Line 1 meets the y-axis at (0, 5); line 2 meets it at (0, ).
Q313 marksShort AnswerCoordinate Geometry

Find a relation between and such that is equidistant from the points and . Hence, write the coordinates of the points on -axis and y-axis which are equidistant from points A and B.

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Answer: ; on x-axis (2, 0), on y-axis (0, )
  1. :
  2. On x-axis (): , point (2, 0)
  3. On y-axis (): , point (0, )
Q325 marksLong AnswerStatistics

During a medical checkup, height of 35 students of a class were recorded as follows :
Height (in cm): 90-100, 100-110, 110-120, 120-130, 130-140, 140-150
Number of Students: 3, 2, 4, 5, 14, 7
Find the difference between the mean height and median height.

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Answer: Mean cm, median cm; difference cm
  1. Class marks: 95, 105, 115, 125, 135, 145
  2. ,
  3. Mean cm
  4. Cumulative frequencies: 3, 5, 9, 14, 28, 35; , so median class is 130-140.
  5. Median cm
  6. Difference cm
Q335 marksLong AnswerQuadratic Equations

A 2-digit number is seven times the sum of its digits and two (2) more than 5 times the product of its digits. Find the number.

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Answer: 42
  1. Let tens digit , units digit ; number .
  2. ( is not a digit), so .
  3. Number . Check: and .
OR
Q33 (OR) (OR)5 marksLong AnswerQuadratic Equations

Find the value(s) of for which the quadratic equation given as has real and equal roots. Also, find the roots of the equation(s) so obtained.

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Answer: (roots ) or (roots )
  1. Equal roots:
  2. or
  3. :
  4. :
Q345 marksLong AnswerTriangles

State the converse of basic proportionality theorem.
Also find in the following figure, given that and .
Also, find the length of EF if AB = 10 cm and DC = 15 cm.

Diagram for CBSE 2025 Class 10 Maths question 34
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Answer: Converse: If a line divides any two sides of a triangle in the same ratio, then the line is parallel to the third side. ; EF = 12 cm
  1. Converse of BPT: If a line divides any two sides of a triangle in the same ratio, then the line is parallel to the third side.
  2. Let diagonal AC meet EF at G.
  3. In , : (BPT)
  4. In , :
  5. : cm
  6. : cm
  7. cm
Q355 marksLong AnswerSurface Areas and Volumes

From one of the faces of a solid wooden cube of side 14 cm, maximum number of hemispheres of diameter 1.4 cm are scooped out. Find the total number of hemispheres that can be scooped out. Also, find the total surface area of the remaining solid.

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Answer: 100 hemispheres; total surface area cm
  1. Along one edge: hemispheres, so on one face hemispheres.
  2. Radius cm.
  3. Surface area of cube cm
  4. Each hemisphere removes a circle and adds a curved surface : net gain cm
  5. Total surface area cm
OR
Q35 (OR) (OR)5 marksLong AnswerSurface Areas and Volumes

From a solid cylinder of height 24 cm and radius 5 cm, two cones of height 12 cm and radius 5 cm are hollowed out. Find the volume and surface area of the remaining solid.

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Answer: Volume cm; surface area cm
  1. Volume of cylinder cm
  2. Volume of two cones cm
  3. Remaining volume cm
  4. The cones are cut from the two ends, so the remaining surface = curved surface of cylinder + curved surfaces of two cones.
  5. Slant height cm
  6. Surface area cm
Q364 marksCase StudyArithmetic Progressions

In an equilateral triangle of side 10 cm, equilateral triangles of side 1 cm are formed as shown in the figure below, such that there is one triangle in the first row, three triangles in the second row, five triangles in the third row and so on.
Based on given information, answer the following questions using Arithmetic Progression.
(i) How many triangles will be there in bottom most row ? (1)
(ii) How many triangles will be there in fourth row from the bottom ? (1)
(iii) (a) Find the total number of triangles of side 1 cm each till row. (2)
OR (iii) (b) How many more number of triangles are there from row to row than in first 4 rows ? Show working. (2)

Diagram for CBSE 2025 Class 10 Maths question 36
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Answer: (i) 19 (ii) 13 (iii)(a) 64 OR (iii)(b) 68
  1. Rows form an A.P. 1, 3, 5, ... with , ; there are 10 rows.
  2. (i)
  3. (ii) Fourth row from the bottom is the row:
  4. (iii)(a)
  5. (iii)(b) ,
  6. Rows 5 to 10: ; difference

Passenger boarding stairs, sometimes referred to as boarding ramps, stair cars or aircraft steps, provide a mobile means to travel between the aircraft doors and the ground. Larger aircraft have door sills 5 to 20 feet (1 foot = 30 cm) high. Stairs facilitate safe boarding and de-boarding.
An aircraft has a door sill at a height of 15 feet above the ground. A stair car is placed at a horizontal distance of 15 feet from the plane.
Based on given information, answer the questions given in part (i) and (ii).
(i) Find the angle at which stairs are inclined to reach the door sill 15 feet high above the ground. (1)
(ii) Find the length of stairs used to reach the door sill. (1)
Further, answer any one of the following questions :
(iii) (a) If the 20 feet long stairs is inclined at an angle of to reach the door sill, then find the height of the door sill above the ground. (use ) (2)
OR (iii) (b) What should be the shortest possible length of stairs to reach the door sill of the plane 20 feet above the ground, if the angle of elevation cannot exceed ? Also, find the horizontal distance of base of stair car from the plane. (2)

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Answer: (i) (ii) feet (iii)(a) feet OR (iii)(b) 40 feet; horizontal distance feet
  1. (i)
  2. (ii) Length feet
  3. (iii)(a) Height feet
  4. (iii)(b) Length is least when is largest, i.e. : length feet
  5. Horizontal distance feet
Q384 marksCase StudyAreas Related to Circles

A farmer has a circular piece of land. He wishes to construct his house in the form of largest possible square within the land as shown below.
The radius of circular piece of land is 35 m.
Based on given information, answer the following questions :
(i) Find the length of wire needed to fence the entire land. (1)
(ii) Find the length of each side of the square land on which house will be constructed. (1)
(iii) (a) The farmer wishes to grow grass on the shaded region around the house. Find the cost of growing the grass at the rate of ₹ 50 per square metre. (2)
OR (iii) (b) Find the ratio of area of land on which house is built to remaining area of circular piece of land. (2)

Diagram for CBSE 2025 Class 10 Maths question 38
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Answer: (i) 220 m (ii) m (iii)(a) ₹ 70000 OR (iii)(b) 7 : 4
  1. (i) Length of wire m
  2. (ii) Diagonal of square = diameter = 70 m, so side m
  3. (iii)(a) Area of circle m; area of square m
  4. Shaded area m; cost ₹ 70000
  5. (iii)(b) Ratio
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