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CBSE Class 10 Maths Standard 2025 Question Paper 30/4/2 with Solutions

All 44 questions from the CBSE Class 10 Mathematics Standard board paper, Set 30/4/2 (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 markMCQPolynomials

Which of the following statements is true for a polynomial of degree 3?

  1. (A) has at most two distinct zeroes.
  2. (B) has at least two distinct zeroes.
  3. (C) has exactly three distinct zeroes.
  4. (D) has at most three distinct zeroes.
Show answer & solution
Answer: (D) has at most three distinct zeroes.
  1. A polynomial of degree has at most zeroes.
  2. A cubic can have 1, 2 or 3 distinct real zeroes (e.g. has only one), so it has at most three.
Q21 markMCQProbability

A pair of dice is thrown once. The probability that sum of numbers appearing on top faces is at least 4 is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. Total outcomes
  2. Sum less than 4: , i.e. 3 outcomes
  3. P(sum at least 4)
Q31 markMCQReal Numbers

If and , where and are prime numbers, then is equal to :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. ,
  2. HCF , LCM
  3. HCF LCM
Q41 markMCQReal Numbers

is :

  1. (A)a positive rational number.
  2. (B)a negative integer.
  3. (C)a positive irrational number.
  4. (D)a negative irrational number.
Show answer & solution
Answer: (C) a positive irrational number
  1. and
  2. Difference , which is positive and irrational.

The value of '' for which has equal and positive roots is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. Equal roots: , so
  2. Each root
  3. For a positive root, , so (root ).

The distance of which of the following points from origin is less than 5 units ?

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. Distance from origin
  2. : 5; : ; : 5; :
Q71 markMCQProbability

The number of red balls in a bag is 10 more than the number of black balls. If the probability of drawing a red ball at random from this bag is , then the total number of balls in the bag is :

  1. (A)50
  2. (B)60
  3. (C)80
  4. (D)40
Show answer & solution
Answer: (A) 50
  1. Let black balls ; red ; total
  2. Total

The value of '' for which the equations , has infinitely many solutions is :

  1. (A) only
  2. (B) only
  3. (C)
  4. (D)Any real number except
Show answer & solution
Answer: (B) 6 only
  1. Infinitely many solutions:
  2. So only (check: ).
Q91 markMCQTriangles

and are shown in the adjoining figures. The measure of is :

Diagram for CBSE 2025 Class 10 Maths question 9
  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. , ,
  2. So (SSS), and
  3. , so

Which of the following is a trigonometric identity ?

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (C)
  1. , so (a) is false.
  2. , so (b) is false.
  3. holds for all valid : (c) is an identity.
  4. fails e.g. at , so (d) is false.

Which of the following statements is true ?

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (C)
  1. For acute angles, and increase and decreases as the angle increases.
  2. So , , and .
  3. Also .

A 30 m long rope is tightly stretched and tied from the top of pole to the ground. If the rope makes an angle of with the ground, the height of the pole is :

  1. (A) m
  2. (B) m
  3. (C)15 m
  4. (D) m
Show answer & solution
Answer: (D) m
  1. Height m
Q131 markMCQStatistics

If mean and mode of given set of observations are 10 and 13 respectively, then the value of median is :

  1. (A)19
  2. (B)4
  3. (C)11
  4. (D)43
Show answer & solution
Answer: (C) 11
  1. Mode Median Mean
  2. Median Median Median
Q141 markMCQCircles

In the adjoining figure, AB is the chord of larger circle which touches the smaller circle at P. If length of diameter of inner circle , then the diameter of larger circle is :

Diagram for CBSE 2025 Class 10 Maths question 14
  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (C)
  1. Inner circle radius and (tangent at P).
  2. P is the mid-point of chord AB, so
  3. Radius of larger circle
  4. Diameter

On the top face of the wooden cube of side 7 cm, hemispherical depressions of radius 0.35 cm are to be formed by taking out the wood. The maximum number of depressions that can be formed is :

  1. (A)400
  2. (B)100
  3. (C)20
  4. (D)10
Show answer & solution
Answer: (B) 100
  1. Diameter of each depression cm
  2. Along each edge: depressions
  3. Maximum number on the face
Q161 markMCQStatistics

The cumulative frequency for calculating median is obtained by adding the frequencies of all the :

  1. (A)classes up to the median class
  2. (B)classes following the median class
  3. (C)classes preceding the median class
  4. (D)all classes
Show answer & solution
Answer: (C) classes preceding the median class
  1. In the median formula, is the cumulative frequency of the class preceding the median class, i.e. the sum of frequencies of all classes before the median class.
Q171 markMCQCircles

A parallelogram having one of its sides 5 cm circumscribes a circle. The perimeter of parallelogram is :

  1. (A)20 cm
  2. (B)less than 20 cm
  3. (C)more than 20 cm but less than 40 cm
  4. (D)40 cm
Show answer & solution
Answer: (A) 20 cm
  1. For a quadrilateral circumscribing a circle, (equal tangents).
  2. In a parallelogram this gives , so all sides are equal (a rhombus).
  3. Perimeter cm
Q181 markMCQTriangles

E and F are points on the sides AB and AC respectively of a such that . Which of the following relation is true ?

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. By the converse of BPT, , so .
  2. , so
Q191 markAssertion–ReasonCircles

Assertion (A) : A line drawn perpendicular to the tangent at point of contact passes through the centre of the circle.
Reason (R) : Lengths of tangents drawn from external point to a circle are equal.

  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 the correct explanation of Assertion (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: (B) Both, Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
  1. A: the radius to the point of contact is the tangent, and there is only one perpendicular at that point, so it passes through the centre. A is true.
  2. R is a true theorem, but A follows from tangent radius, not from equal tangent lengths.
Q201 markAssertion–ReasonReal Numbers

Assertion (A) : ends with digit 0 for some natural number .
Reason (R) : For a number '' having 2 and 5 as its prime factors, always ends with digit 0 for every natural number .

  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 the correct explanation of Assertion (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. has only the prime factor 2; to end in 0 it must have 5 as a factor. So A is false.
  2. If 2 and 5 are prime factors of , then , so and ends in 0. So R is true.
Also asked in: 2025 Standard 30/4/1
Q212 marksVery Short AnswerIntroduction to Trigonometry

Find the value of for which

Show answer & solution
Answer:
  1. LHS
  2. So
OR
Q21 (OR) (OR)2 marksVery Short AnswerIntroduction to Trigonometry

Evaluate the following :

Show answer & solution
Answer:
  1. Numerator
  2. Denominator
  3. Value
Q222 marksVery Short AnswerProbability

Saima and Aryaa were born in the month of June in the year 2012. Find the probability that :
(i) they have different dates of birth.
(ii) they have same date of birth.

Show answer & solution
Answer: (i) (ii)
  1. June has 30 days. Whatever Saima's date is, Aryaa's date can be any of 30 equally likely days.
  2. (ii) P(same date)
  3. (i) P(different dates)

Solve the following system of equations algebraically :

Show answer & solution
Answer: ,
  1. Add: ... (1)
  2. Subtract the first from the second: ... (2)
  3. From (1) and (2): ,
  4. Check:
Q242 marksVery Short AnswerTriangles

A 1.5 m tall boy is walking away from the base of a lamp post which is 12 m high, at the speed of 2.5 m/sec. Find the length of his shadow after 3 seconds.

Show answer & solution
Answer: m (about 1.07 m)
  1. Distance walked in 3 s m
  2. Let the shadow be m. The boy and the lamp post are both vertical, so the two right triangles formed with the tip of the shadow are similar (AA).
  3. m m
OR
Q24 (OR) (OR)2 marksVery Short AnswerTriangles

In parallelogram ABCD, side AD is produced to a point E and BE intersects CD at F. Prove that

Show answer & solution
Answer: Proved.
  1. In and :
  2. (opposite angles of parallelogram ABCD, )
  3. (AD BC and E lies on AD produced), with BE as transversal, so (alternate angles)
  4. Hence (AA similarity).
Q252 marksVery Short AnswerCoordinate Geometry

Find the coordinates of the point C which lies on the line AB produced such that , where coordinates of points A and B are and respectively.

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Answer:
  1. C lies on AB produced beyond B and , so : B is the mid-point of AC.
  2. Let . Then and
  3. , , so
Q263 marksShort AnswerPolynomials

and are zeroes of a quadratic polynomial . Obtain a quadratic polynomial whose zeroes are and .

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Answer: (or any non-zero multiple)
  1. ,
  2. Sum of new zeroes
  3. Product
  4. Required polynomial
Q273 marksShort AnswerCircles

Rectangle ABCD circumscribes the circle of radius 10 cm. Prove that ABCD is a square. Hence, find the perimeter of ABCD.

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Answer: ABCD is a square (proved); perimeter cm
  1. Let the sides AB, BC, CD, DA touch the circle at P, Q, R, S.
  2. Tangents from an external point are equal: , , ,
  3. Adding:
  4. In a rectangle , , so , i.e. . A rectangle with adjacent sides equal is a square.
  5. Side of square diameter cm, so perimeter cm
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 2 divides , hence 2 divides . Let .
  3. , so 2 divides , hence 2 divides .
  4. So 2 is a common factor of and , contradicting that they are coprime.
  5. Hence is irrational.
OR
Q28 (OR) (OR)3 marksShort AnswerReal Numbers

Let and be two distinct prime numbers and , , . Find the HCF and LCM of , and . Further check if or not.

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Answer: HCF , LCM ; HCF LCM
  1. HCF = product of smallest powers:
  2. LCM = product of greatest powers:
  3. HCF LCM
  4. , so HCF LCM .

The two angles of a right angled triangle other than are in the ratio . Express the given situation algebraically as a system of linear equations in two variables and hence solve it.

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Answer: , ; angles and
  1. Let the two acute angles be and (in degrees).
  2. ... (1) (angle sum with one angle )
  3. ... (2)
  4. From (1), ; then
  5. . The angles are and .
Q303 marksShort AnswerCoordinate Geometry

, and are the vertices of a right triangle PQR right angled at P. Find the relationship between and . Hence, find all possible values of for which .

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Answer: ; or
  1. Right angle at P:
  2. , ,
  3. Put : , so
Q313 marksShort AnswerIntroduction to Trigonometry

Prove that

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Answer: Proved.
  1. Divide numerator and denominator by : LHS
  2. Write in the numerator:
  3. Numerator
  4. Denominator
  5. LHS RHS
OR
Q31 (OR) (OR)3 marksShort AnswerIntroduction to Trigonometry

If and ,
prove that

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Answer: Proved.
  1. Hence
Q325 marksLong AnswerStatistics

The following table shows the number of traffic challans issued in the month of April by the traffic police :
Number of Challans: 0-10, 10-20, 20-30, 30-40, 40-50, 50-60, Total
Number of Days: 3, 5, 10, 9, 2, 1, 30
Find the 'mean' and 'mode' of the above data.

Show answer & solution
Answer: Mean ; Mode
  1. Class marks: 5, 15, 25, 35, 45, 55
  2. ;
  3. Mean
  4. Modal class 20-30: , , , ,
  5. Mode
Q335 marksLong AnswerQuadratic Equations

The sides of a right triangle are such that the longest side is 4 m more than the shortest side and the third side is 2 m less than the longest side. Find the length of each side of the triangle. Also, find the difference between the numerical values of the area and the perimeter of the given triangle.

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Answer: Sides 6 m, 8 m, 10 m; difference = 0 (area 24, perimeter 24)
  1. Let shortest side m; longest ; third side
  2. Pythagoras:
  3. ()
  4. Sides: 6 m, 8 m, 10 m
  5. Area ; perimeter
  6. Difference
OR
Q33 (OR) (OR)5 marksLong AnswerQuadratic Equations

Express the equation ; as a quadratic equation in standard form. Hence, find the roots of the equation so formed.

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Answer: ; roots and
  1. (standard form)
  2. ;
  3. or (both allowed since )
Q345 marksLong AnswerTriangles

The corresponding sides of and are in the ratio 3 : 5. and as shown in the following figures :
(i) Prove that
(ii) If cm, find the length of PS.
(iii) Using (ii) find ar : ar

Diagram for CBSE 2025 Class 10 Maths question 34
Show answer & solution
Answer: (i) Proved. (ii) cm (iii)
  1. (i) (sides proportional), so .
  2. In and : and , so (AA).
  3. (ii) , so cm
  4. (iii)
  5. So ar : ar
OR
Q34 (OR) (OR)5 marksLong AnswerTriangles

State basic proportionality theorem. Use it to prove the following :
If three parallel lines , , are intersected by transversals and as shown in the adjoining figure, then .

Diagram for CBSE 2025 Class 10 Maths question 34 (OR)
Show answer & solution
Answer: Statement given; Proved.
  1. BPT: If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio.
  2. Proof of BPT: In let with D on AB, E on AC. Join BE and CD; draw , .
  3. and
  4. and are on the same base DE between the same parallels DE and BC, so ar(BDE) = ar(DEC). Hence .
  5. Application: Join AF, cutting line at G.
  6. In , (as ), so by BPT ... (1)
  7. In , (as ), so by BPT , i.e. ... (2)
  8. From (1) and (2):
Q355 marksLong AnswerSurface Areas and Volumes

In order to provide shelter to flood victims, a shed was constructed using tin sheets which is in the form of cuboid surmounted by a half cylinder as shown below :
The length, breadth and height of cuboidal portion are 10 m, 7 m and 3 m respectively. The diameter of the cylindrical portion is 7 m. Find the cost of tin sheets required to make the shed at the rate of ₹ 70 per square metre, given that the shed is open from the front side and closed from the back side.

Diagram for CBSE 2025 Class 10 Maths question 35
Show answer & solution
Answer: ₹ 14,717.50 (tin sheet area m)
  1. Radius of half cylinder m, its length m
  2. Two side walls of cuboid m
  3. Back wall (rectangular part) m
  4. Curved roof m
  5. Back semicircular part m
  6. Total m (front open, floor not covered)
  7. Cost ₹ 14,717.50
Q364 marksCase StudyArithmetic Progressions

Cable cars at hill stations are one of the major tourist attractions. On a hill station, the length of cable car ride from base point to top most point on the hill is 5000 m. Poles are installed at equal intervals on the way to provide support to the cables on which car moves.
The distance of first pole from base point is 200 m and subsequent poles are installed at equal interval of 150 m. Further, the distance of last pole from the top is 300 m.
Based on above information, answer the following questions using Arithmetic Progression :
(i) Find the distance of pole from the base. (1)
(ii) Find the distance between pole and pole. (1)
(iii) (a) Find the time taken by cable car to reach pole from the top if it is moving at the speed of 5m/sec and coming from top. (2)
OR (iii) (b) Find the total number of poles installed along the entire journey. (2)

Show answer & solution
Answer: (i) 1550 m (ii) 1500 m (iii) (a) 480 seconds (8 minutes) OR (iii) (b) 31
  1. Distances of poles from base: 200, 350, 500, ... AP with ,
  2. (i) m
  3. (ii) m
  4. (iii)(b) Last pole is at m: poles
  5. (iii)(a) Counting from the top, the poles are at 300, 450, 600, ... m from the top (, ).
  6. pole from top is at m from the top
  7. Time s minutes

A drone was used to facilitate movement of an ambulance on the straight highway to a point P on the ground where there was an accident.
The ambulance was travelling at the speed of 60 km/h. The drone stopped at a point Q, 100 m vertically above the point P. The angle of depression of the ambulance was found to be at a particular instant.
Based on above information, answer the following questions :
(i) Represent the above situation with the help of a diagram. (1)
(ii) Find the distance between the ambulance and the site of accident (P) at the particular instant. (Use ) (1)
(iii) (a) Find the time (in seconds) in which the angle of depression changes from to . (2)
OR (iii) (b) How long (in seconds) will the ambulance take to reach point P from a point T on the highway such that angle of depression of the ambulance at T is from the drone ? (2)

Diagram for CBSE 2025 Class 10 Maths question 37
Show answer & solution
Answer: (i) Right triangle QPA with QP = 100 m vertical, ambulance at A on the highway, angle of depression at Q (ii) 173 m (iii) (a) 4.38 s OR (iii) (b) s
  1. (i) Draw QP = 100 m vertical with P on the highway; ambulance at A on the highway; of depression from Q to A , so .
  2. (ii) m
  3. Speed km/h m/s
  4. (iii)(a) At : distance from P m. Distance covered m
  5. Time s
  6. (iii)(b) At T: m
  7. Time s
Q384 marksCase StudyAreas Related to Circles

The Olympic symbol comprising five interlocking rings represents the union of the five continents of the world and the meeting of athletes from all over the world at the Olympic games. In order to spread awareness about Olympic games, students of Class-X took part in various activities organised by the school. One such group of students made 5 circular rings in the school lawn with the help of ropes. Each circular ring required 44 m of rope.
Also, in the shaded regions as shown in the figure, students made rangoli showcasing various sports and games. It is given that is an equilateral triangle and all unshaded regions are congruent.
Based on above information, answer the following questions :
(i) Find the radius of each circular ring. (1)
(ii) What is the measure of ? (1)
(iii) (a) Find the area of shaded region . (2)
OR (iii) (b) Find the length of rope around the unshaded regions. (2)

Diagram for CBSE 2025 Class 10 Maths question 38
Show answer & solution
Answer: (i) 7 m (ii) (iii) (a) m m OR (iii) (b) m m
  1. (i) m
  2. (ii) is equilateral, so
  3. (iii)(a) Each unshaded region (lens) is made of two congruent segments with chord AB = 7 m subtending .
  4. Segment area
  5. Lens area
  6. = circle lens m
  7. (iii)(b) Each lens is bounded by two arcs of : length m
  8. There are 4 unshaded regions: total m
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