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CBSE Class 10 Maths Standard 2024 Question Paper 30/4/3 with Solutions

All 44 questions from the CBSE Class 10 Mathematics Standard board paper, Set 30/4/3 (2024), 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 30/5/3

The area of the sector of a circle of radius 12 cm is cm. The central angle of this sector is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. Area of sector = .
  2. .
  3. .
Also asked in: 2024 Standard 30/4/1

Two lines are given to be parallel. The equation of one of these lines is . The equation of the second line can be :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. For parallel lines, .
  2. With : , , .
  3. So is parallel to . (The other options fail .)

At some time of the day, the length of the shadow of a tower is equal to its height. Then, the Sun’s altitude at that time is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (B)
  1. Let height = shadow = and the Sun's altitude be .
  2. .
  3. .

The pair of linear equations y = 0 and y = have

  1. (A)exactly one solution
  2. (B)two solutions
  3. (C)infinitely many solutions
  4. (D)no solution
Show answer & solution
Answer: (D) no solution
  1. y = 0 is the x-axis and y = is a line parallel to it.
  2. Parallel distinct lines never meet.
  3. So the pair has no solution.

The area of the square inscribed in a circle of radius cm is :

  1. (A)50 cm
  2. (B)100 cm
  3. (C)25 cm
  4. (D)200 cm
Show answer & solution
Answer: (B) 100 cm
  1. The diagonal of the inscribed square is a diameter = cm.
  2. Side = cm.
  3. Area = cm.
Q61 markMCQCircles

In the given figure, QR is a common tangent to the two given circles touching externally at A. The tangent at A meets QR at P. If AP = 4.2 cm, then the length of QR is :

Diagram for CBSE 2024 Class 10 Maths question 6
  1. (A)4.2 cm
  2. (B)2.1 cm
  3. (C)8.4 cm
  4. (D)6.3 cm
Show answer & solution
Answer: (C) 8.4 cm
  1. Tangents from P to the first circle: PQ = PA = 4.2 cm.
  2. Tangents from P to the second circle: PR = PA = 4.2 cm.
  3. QR = PQ + PR = 8.4 cm.
Q71 markMCQCircles

In the given figure, AB and AC are tangents to the circle. If , then the measure of is :

Diagram for CBSE 2024 Class 10 Maths question 7
  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (A)
  1. Tangents from an external point are equal, so AB = AC.
  2. Hence .
  3. .

Two identical solid cubes of side ‘a’ are joined end-to-end. The total surface area of the resulting cuboid is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (B)
  1. The cuboid has dimensions .
  2. TSA = .
Q91 markMCQReal Numbers

The HCF of two numbers 65 and 104 is 13. If LCM of 65 and 104 is , then the value of is :

  1. (A)5
  2. (B)13
  3. (C)40
  4. (D)8
Show answer & solution
Answer: (B) 13
  1. HCF LCM = product of the numbers.
  2. LCM = .
  3. , so .
Also asked in: 2024 Standard 30/4/1
Q101 markMCQProbability

For an event E, if , then the value of is :

  1. (A)
  2. (B)3
  3. (C)5
  4. (D)
Show answer & solution
Answer: (A)
  1. , so .
  2. .
Also asked in: 2024 Standard 30/4/1
Q111 markMCQTriangles

In , DE BC (as shown in the figure). If AD = 4 cm, AB = 9 cm and AC = 13.5 cm, then the length of EC is :

Diagram for CBSE 2024 Class 10 Maths question 11
  1. (A)6 cm
  2. (B)7.5 cm
  3. (C)9 cm
  4. (D)5.7 cm
Show answer & solution
Answer: (B) 7.5 cm
  1. Since DE BC, by BPT .
  2. , so AE = 6 cm.
  3. EC = AC AE = 13.5 6 = 7.5 cm.
Q121 markMCQPolynomials

If a polynomial is given by , then the value of is :

  1. (A)0
  2. (B)4
  3. (C)2
  4. (D)
Show answer & solution
Answer: (B) 4
  1. .
  2. .
  3. .
Also asked in: 2024 Standard 30/4/1

The fourth vertex D of a parallelogram ABCD whose three vertices are A(, 3), B(6, 7) and C(8, 3) is :

  1. (A)(0, 1)
  2. (B)(0, )
  3. (C)(, 0)
  4. (D)(1, 0)
Show answer & solution
Answer: (B) (0, )
  1. Diagonals of a parallelogram bisect each other, so midpoint of AC = midpoint of BD.
  2. Midpoint of AC = .
  3. gives ; gives .
  4. D = (0, ).
Q141 markMCQStatistics

If the difference of mode and median of a data is 24, then the difference of its median and mean is :

  1. (A)12
  2. (B)24
  3. (C)8
  4. (D)36
Show answer & solution
Answer: (A) 12
  1. Empirical relation: Mode = 3 Median 2 Mean.
  2. So Mode Median = 2(Median Mean).
  3. (Median Mean), so Median Mean = 12.
Also asked in: 2024 Standard 30/4/1

Three numbers in A.P. have the sum 30. What is its middle term ?

  1. (A)4
  2. (B)10
  3. (C)16
  4. (D)8
Show answer & solution
Answer: (B) 10
  1. Let the numbers be , , .
  2. Sum = , so .
  3. Middle term = 10.
Q161 markMCQProbability

The probability of throwing a number greater than 2 with a fair die is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (A)
  1. Numbers greater than 2: 3, 4, 5, 6 (4 outcomes out of 6).
  2. P = .

If y = 1 is one of the solutions of the quadratic equation , then the value of p is :

  1. (A)
  2. (B)2
  3. (C)
  4. (D)
Show answer & solution
Answer: (C)
  1. Put : .
  2. , so .

The value of for which ; is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (A)
  1. , so (positive in the given range).
  2. .
Q191 markAssertion–ReasonCoordinate Geometry

Assertion (A) : Mid-point of a line segment divides the line segment in the ratio 1 : 1.
Reason (R) : The ratio in which the point (, k) divides the line segment joining the points (, 4) and (, 3) is 1 : 2.

  1. (A)Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
  2. (B)Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the 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: (C) Assertion (A) is true, but Reason (R) is false.
  1. Assertion: the mid-point is equidistant from both ends, so the ratio is 1 : 1. True.
  2. Reason: let the ratio be . Using x-coordinates, .
  3. gives , so the ratio is 2 : 1, not 1 : 2. False.
  4. A is true, R is false.
Q201 markAssertion–ReasonAreas Related to Circles

Assertion (A) : If the circumference of a circle is 176 cm, then its radius is 28 cm.
Reason (R): Circumference = radius of a circle.

  1. (A)Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
  2. (B)Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the 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: (A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
  1. Reason: circumference = . True.
  2. Assertion: gives cm. True.
  3. The assertion follows directly from the formula in the reason, so R explains A.
Q212 marksVery Short AnswerCircles

In the given figure, is circumscribing a circle. Find the length of BC, if AR = 4 cm, BR = 3 cm and AC = 11 cm.

Diagram for CBSE 2024 Class 10 Maths question 21
Show answer & solution
Answer: BC = 10 cm
  1. Tangents from an external point are equal.
  2. AQ = AR = 4 cm, so CQ = AC AQ = 11 4 = 7 cm.
  3. CP = CQ = 7 cm and BP = BR = 3 cm.
  4. BC = BP + PC = 3 + 7 = 10 cm.
Q222 marksVery Short AnswerIntroduction to Trigonometry

Evaluate :

Show answer & solution
Answer:
  1. , , , , .
  2. Numerator = .
  3. Denominator = .
  4. Value = .
OR
Q22 (OR) (OR)2 marksVery Short AnswerIntroduction to Trigonometry

If , ; , ; find and .

Show answer & solution
Answer: ,
  1. gives .
  2. gives .
  3. Adding: , so ; then .
Q232 marksVery Short AnswerTriangles

In the given figure, . If AK = 8 cm, BC = 3.2 cm and HK = 6.4 cm, then find the length of AC.

Diagram for CBSE 2024 Class 10 Maths question 23
Show answer & solution
Answer: AC = 4 cm
  1. Since , .
  2. .
  3. AC = 4 cm.
Q242 marksVery Short AnswerAreas Related to Circles

The minute hand of a clock is 14 cm long. Find the area on the face of the clock described by the minute hand in 5 minutes.

Show answer & solution
Answer: cm 51.33 cm
  1. In 60 minutes the minute hand turns , so in 5 minutes it turns .
  2. Area = .
  3. cm.
OR
Q24 (OR) (OR)2 marksVery Short AnswerAreas Related to Circles

Find the length of the arc of a circle which subtends an angle of at the centre of the circle of radius 42 cm.

Show answer & solution
Answer: 44 cm
  1. Arc length = .
  2. .
  3. cm.
Q252 marksVery Short AnswerReal Numbers

Three bells toll at intervals of 9, 12 and 15 minutes respectively. If they start tolling together, after what time will they next toll together ?

Show answer & solution
Answer: After 180 minutes, i.e. 3 hours
  1. , , .
  2. LCM = .
  3. They toll together again after 180 minutes = 3 hours.
Also asked in: 2024 Standard 30/4/1
Q263 marksShort AnswerProbability

Three coins are tossed simultaneously. What is the probability of getting
(i) at least one head ?
(ii) exactly two tails ?
(iii) at most one tail ?

Show answer & solution
Answer: (i) (ii) (iii)
  1. Outcomes: HHH, HHT, HTH, THH, HTT, THT, TTH, TTT (8 outcomes).
  2. (i) Only TTT has no head, so P(at least one head) = .
  3. (ii) Exactly two tails: HTT, THT, TTH, so P = .
  4. (iii) At most one tail: HHH, HHT, HTH, THH, so P = .
OR
Q26 (OR) (OR)3 marksShort AnswerProbability

A box contains 90 discs which are numbered 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a :
(i) 2-digit number less than 40.
(ii) number divisible by 5 and greater than 50.
(iii) a perfect square number.

Show answer & solution
Answer: (i) (ii) (iii)
  1. Total outcomes = 90.
  2. (i) 2-digit numbers less than 40 are 10 to 39: 30 numbers. P = .
  3. (ii) Multiples of 5 greater than 50: 55, 60, 65, 70, 75, 80, 85, 90 (8 numbers). P = .
  4. (iii) Perfect squares: 1, 4, 9, 16, 25, 36, 49, 64, 81 (9 numbers). P = .
Q273 marksShort AnswerCircles

Prove that the parallelogram circumscribing a circle is a rhombus.

Show answer & solution
Answer: Proved.
  1. Let parallelogram ABCD touch the circle at P, Q, R, S on AB, BC, CD, DA respectively.
  2. Tangents from an external point are equal: AP = AS, BP = BQ, CR = CQ, DR = DS.
  3. Adding: (AP + BP) + (CR + DR) = (AS + DS) + (BQ + CQ), i.e. AB + CD = AD + BC.
  4. In a parallelogram AB = CD and AD = BC, so 2AB = 2BC, i.e. AB = BC.
  5. Thus all four sides are equal and ABCD is a rhombus.
Q283 marksShort AnswerPolynomials

Find the zeroes of the polynomial and verify the relationship between zeroes and coefficients of the polynomial.

Show answer & solution
Answer: Zeroes are and ; relationship verified.
  1. .
  2. Zeroes: and .
  3. Sum = and .
  4. Product = and .
  5. Hence the relationship is verified.
OR
Q28 (OR) (OR)3 marksShort AnswerPolynomials

If and are the zeroes of the polynomial , then find the value of .

Show answer & solution
Answer:
  1. and .
  2. .
  3. .
Q293 marksShort AnswerReal Numbers

Prove that is an irrational number, given that is an irrational number.

Show answer & solution
Answer: Proved.
  1. Suppose is rational, say with rational.
  2. Then , so .
  3. is rational (rationals are closed under subtraction and multiplication), so would be rational.
  4. This contradicts the fact that is irrational.
  5. Hence is irrational.

A part of monthly hostel charges is fixed and the remaining depends on the number of days one has taken food in the mess. When a student A takes food for 20 days, she has to pay ₹ 1,500 as hostel charges while another student B, who takes food for 26 days, pays ₹ 1,800. Find the fixed charges and the cost of food.

Show answer & solution
Answer: Fixed charges ₹ 500; cost of food ₹ 50 per day
  1. Let the fixed charge be ₹ and the cost of food per day be ₹ .
  2. and .
  3. Subtracting: , so .
  4. .
  5. Fixed charges ₹ 500 and cost of food ₹ 50 per day.
Q313 marksShort AnswerIntroduction to Trigonometry

Prove that .

Show answer & solution
Answer: Proved.
  1. .
  2. So LHS = (for acute ).
  3. RHS = .
  4. LHS = RHS. Hence proved.
Also asked in: 2025 Standard 30/2/3
Q325 marksLong AnswerStatistics

The following distribution shows the daily pocket allowance of children of a locality. The mean daily pocket allowance is ₹ 36.10. Find the missing frequency, f.
Daily pocket allowance (in ₹): 20–25, 25–30, 30–35, 35–40, 40–45, 45–50, 50–55
Number of children: 7, 6, 9, 13, f, 5, 4

Show answer & solution
Answer: f = 6
  1. Class marks: 22.5, 27.5, 32.5, 37.5, 42.5, 47.5, 52.5.
  2. : 157.5, 165, 292.5, 487.5, 42.5f, 237.5, 210.
  3. and .
  4. , so .
  5. , so .
Q335 marksLong AnswerQuadratic Equations

A train travels a distance of 90 km at a constant speed. Had the speed been 15 km/h more, it would have taken 30 minutes less for the journey. Find the original speed of the train.

Show answer & solution
Answer: 45 km/h
  1. Let the original speed be km/h.
  2. .
  3. , so .
  4. , i.e. .
  5. Speed cannot be negative, so km/h.
Also asked in: 2024 Standard 30/4/1
OR
Q33 (OR) (OR)5 marksLong AnswerQuadratic Equations

Find the value of ‘c’ for which the quadratic equation
;
has real and equal roots.

Show answer & solution
Answer:
  1. For real and equal roots, .
  2. .
  3. , i.e. .
  4. Since , , so .
Also asked in: 2024 Standard 30/4/1
Q345 marksLong AnswerTriangles

E is a point on the side AD produced of a parallelogram ABCD and BE intersects CD at F. Show that .

Show answer & solution
Answer: Proved.
  1. In and :
  2. (opposite angles of parallelogram ABCD).
  3. AE lies along AD and AD BC, so with transversal BE, (alternate angles).
  4. By AA similarity, .
OR
Q34 (OR) (OR)5 marksLong AnswerTriangles

Sides AB, BC and the median AD of are respectively proportional to sides PQ, QR and the median PM of another . Prove that .

Show answer & solution
Answer: Proved.
  1. Given , where D and M are mid-points of BC and QR.
  2. BD = BC and QM = QR, so .
  3. Hence , so (SSS similarity).
  4. Therefore .
  5. In and : and the included angles .
  6. By SAS similarity, .

The angles of depression of the top and the bottom of a 8 m tall building from the top of a multi-storeyed building are and respectively. Find the height of the multi-storeyed building and the distance between the two buildings.

Show answer & solution
Answer: Height = distance = m 18.93 m
  1. Let the multi-storeyed building have height m and let the distance between the buildings be m.
  2. Bottom of the 8 m building (): , so .
  3. Top of the 8 m building (): , so .
  4. , so m.
  5. m, and the distance m.
Q364 marksCase StudyArithmetic Progressions

Treasure Hunt is an exciting and adventurous game where participants follow a series of clues/numbers/maps to discover hidden treasures. Players engage in a thrilling quest, solving puzzles and riddles to unveil the location of the coveted prize.
While playing a treasure hunt game, some clues (numbers) are hidden in various spots collectively forming an A.P. If the number on the spot is , then answer the following questions to help the players in spotting the clues :
(i) Which number is on first spot ? (1)
(ii) Which spot is numbered as 112 ? (2)
OR What is the sum of all the numbers on the first 10 spots ? (2)
(iii) Which number is on the spot ? (1)

Show answer & solution
Answer: (i) 24 (ii) 23rd spot; OR 420 (iii)
  1. , so the A.P. is 24, 28, 32, ... with , .
  2. (i) .
  3. (ii) gives , so : the 23rd spot.
  4. OR: ; .
  5. (iii) .
Q374 marksCase StudySurface Areas and Volumes

Tamper-proof tetra-packed milk guarantees both freshness and security. This milk ensures uncompromised quality, preserving the nutritional values within and making it a reliable choice for health-conscious individuals.
500 mL milk is packed in a cuboidal container of dimensions 15 cm 8 cm 5 cm. These milk packets are then packed in cuboidal cartons of dimensions 30 cm 32 cm 15 cm.
Based on the above given information, answer the following questions :
(i) Find the volume of the cuboidal carton. (1)
(ii) Find the total surface area of a milk packet. (2)
OR How many milk packets can be filled in a carton ? (2)
(iii) How much milk can the cup (as shown in the figure) hold ? (1)

Diagram for CBSE 2024 Class 10 Maths question 37
Show answer & solution
Answer: (i) 14400 cm (ii) 470 cm; OR 24 packets (iii) 550 cm, i.e. 550 mL
  1. (i) Volume of carton = cm.
  2. (ii) TSA of a packet = cm.
  3. OR: Volume of a packet = cm; number of packets = (they fit exactly: ).
  4. (iii) The cup is a cylinder of radius 5 cm (marked from the centre of the base) and height 7 cm.
  5. Volume = cm = 550 mL.
Q384 marksCase StudyCoordinate Geometry

Ryan, from a very young age, was fascinated by the twinkling of stars and the vastness of space. He always dreamt of becoming an astronaut one day. So he started to sketch his own rocket designs on the graph sheet. One such design is given below :
Based on the above, answer the following questions :
(i) Find the mid-point of the segment joining F and G. (1)
(ii) What is the distance between the points A and C ? (2)
OR Find the coordinates of the point which divides the line segment joining the points A and B in the ratio 1 : 3 internally. (2)
(iii) What are the coordinates of the point D ? (1)

Diagram for CBSE 2024 Class 10 Maths question 38
Show answer & solution
Answer: (i) (, 2) (ii) units; OR (iii) (, )
  1. From the graph: A(3, 4), B(3, 2), C(, ), D(, ), F(, 0), G(1, 4).
  2. (i) Mid-point of FG = .
  3. (ii) AC = units.
  4. OR: Point dividing AB in 1 : 3 = .
  5. (iii) D = (, ).
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