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CBSE Class 10 Maths Standard 2024 Question Paper 30/5/3 with Solutions

All 44 questions from the CBSE Class 10 Mathematics Standard board paper, Set 30/5/3 (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
Q11 markMCQReal Numbers

The LCM of the smallest prime number and the smallest odd composite number is :

  1. (A)10
  2. (B)6
  3. (C)9
  4. (D)18
Show answer & solution
Answer: (D) 18
  1. Smallest prime number = 2; smallest odd composite number = 9.
  2. and have no common factor, so LCM .
Q21 markMCQStatistics

If the mean of the first natural numbers is , then the value of is :

  1. (A)5
  2. (B)4
  3. (C)9
  4. (D)10
Show answer & solution
Answer: (C) 9
  1. Mean of the first natural numbers .
  2. .

If , then the value of is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (B)
  1. : take opposite side 12, adjacent side 5.
  2. Hypotenuse , so .

The next () term of the A.P. is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (C)
  1. , , , so .
  2. Next term .
Also asked in: 2024 Standard 30/5/1
Q51 markMCQTriangles

In the given figure, in , DE BC. If AD = 2.4 cm, DB = 4 cm and AE = 2 cm, then the length of AC is :

Diagram for CBSE 2024 Class 10 Maths question 5
  1. (A) cm
  2. (B) cm
  3. (C) cm
  4. (D)1.2 cm
Show answer & solution
Answer: (C) cm
  1. By BPT, cm.
  2. cm.
Q61 markMCQCircles

In the given figure, RJ and RL are two tangents to the circle. If , then the measure of is :

Diagram for CBSE 2024 Class 10 Maths question 6
  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (B)
  1. RJ = RL (tangents from R), so and .
  2. In quadrilateral RJOL, .
  3. .

The perimeter of the sector of a circle of radius 21 cm which subtends an angle of at the centre of circle, is :

  1. (A)22 cm
  2. (B)43 cm
  3. (C)64 cm
  4. (D)462 cm
Show answer & solution
Answer: (C) 64 cm
  1. Arc length cm.
  2. Perimeter cm.
Q81 markMCQPolynomials

The ratio of the sum and product of the roots of the quadratic equation is :

  1. (A)5 : 21
  2. (B)2 : 7
  3. (C)21 : 5
  4. (D)7 : 2
Show answer & solution
Answer: (B) 2 : 7
  1. Sum of roots , product of roots .
  2. Ratio .
Also asked in: 2024 Standard 30/5/1

The term from the end of the A.P. –11, –8, –5, ..., 49 is :

  1. (A)7
  2. (B)10
  3. (C)13
  4. (D)28
Show answer & solution
Answer: (B) 10
  1. Read from the end, the A.P. is 49, 46, 43, ... with first term 49 and common difference –3.
  2. term from the end .

The length of the shadow of a tower on the plane ground is times the height of the tower. The angle of elevation of the Sun is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (A)
  1. Let the height be ; the shadow is .
  2. , so .
Q111 markMCQProbability

What is the probability that a number selected randomly from the numbers 1, 2, 3, ..., 15 is a multiple of 4 ?

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (C)
  1. Multiples of 4 from 1 to 15: 4, 8, 12, i.e. 3 numbers.
  2. P(multiple of 4) .

If , , then the value of is :

  1. (A)36
  2. (B)9
  3. (C)6
  4. (D)18
Show answer & solution
Answer: (A) 36
  1. and .
  2. .
Also asked in: 2024 Standard 30/5/1
Q131 markMCQPolynomials

If and are the zeroes of the polynomial and , then the value of is :

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

The length of an arc of a circle with radius 12 cm is cm. The angle subtended by the arc at the centre of the circle, is :

  1. (A)
  2. (B)
  3. (C)
  4. (D)
Show answer & solution
Answer: (D)
  1. .
  2. .
Q151 markMCQReal Numbers

The LCM of three numbers 28, 44, 132 is :

  1. (A)258
  2. (B)231
  3. (C)462
  4. (D)924
Show answer & solution
Answer: (D) 924
  1. , , .
  2. LCM .
Q161 markMCQCircles

A chord of a circle of radius 10 cm subtends a right angle at its centre. The length of the chord (in cm) is :

Diagram for CBSE 2024 Class 10 Maths question 16
  1. (A)
  2. (B)
  3. (C)
  4. (D)5
Show answer & solution
Answer: (B)
  1. In , OA = OB = 10 cm and .
  2. cm.

Which out of the following type of straight lines will be represented by the system of equations and ?

  1. (A)Parallel
  2. (B)Intersecting
  3. (C)Coincident
  4. (D)Perpendicular to each other
Show answer & solution
Answer: (A) Parallel
  1. , , .
  2. , so the lines are parallel.
Q181 markMCQReal Numbers

The greatest number which divides 281 and 1249, leaving remainder 5 and 7 respectively, is :

  1. (A)23
  2. (B)276
  3. (C)138
  4. (D)69
Show answer & solution
Answer: (C) 138
  1. The number divides and exactly.
  2. and .
  3. HCF (and 138 > 7, so the remainders are valid).
Also asked in: 2024 Standard 30/5/1
Q191 markAssertion–ReasonPolynomials

Assertion (A) : Degree of a zero polynomial is not defined.
Reason (R) : Degree of a non-zero constant polynomial is 0.

  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 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 is true: the zero polynomial has no non-zero term, so its degree is not defined.
  2. R is true: a non-zero constant has degree 0.
  3. R is about non-zero constants, so it does not explain A.
Q201 markAssertion–ReasonTriangles

Assertion (A) : ABCD is a trapezium with DC AB. E and F are points on AD and BC respectively, such that EF AB. Then .
Reason (R) : Any line parallel to parallel sides of a trapezium divides the non-parallel sides proportionally.

  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 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 Assertion (A).
  1. Join AC meeting EF at G. In , EG DC, so (BPT).
  2. In , GF AB, so .
  3. Hence : R is true and A is exactly R applied to this trapezium, so R explains A.
Q212 marksVery Short AnswerProbability

The king, queen and ace of clubs and diamonds are removed from a deck of 52 playing cards and the remaining cards are shuffled. A card is randomly drawn from the remaining cards. Find the probability of getting
(i) a card of clubs.
(ii) a red coloured card.

Show answer & solution
Answer: (i) (ii)
  1. Cards removed: 3 clubs and 3 diamonds, so cards remain.
  2. (i) Clubs left ; P(club) .
  3. (ii) Red cards left hearts diamonds ; P(red) .
Q222 marksVery Short AnswerCircles

If two tangents inclined at an angle of are drawn to a circle of radius 3 cm, then find the length of each tangent.

Show answer & solution
Answer: cm
  1. Let PA and PB be the tangents from P to the circle with centre O, .
  2. OP bisects , so , and .
  3. cm.
  4. Each tangent is cm long.
OR
Q22 (OR) (OR)2 marksVery Short AnswerCircles

Prove that the tangents drawn at the ends of a diameter of a circle are parallel.

Show answer & solution
Answer: Proved.
  1. Let AB be a diameter of a circle with centre O, and let PQ and RS be the tangents at A and B.
  2. A tangent is perpendicular to the radius at the point of contact, so and .
  3. Hence and .
  4. These are alternate angles made by the transversal AB and they are equal, so PQ RS.
Q232 marksVery Short AnswerCoordinate Geometry

Find the ratio in which the point P(–4, 6) divides the line segment joining the points A(–6, 10) and B(3, –8).

Show answer & solution
Answer: 2 : 7
  1. Let P divide AB in the ratio .
  2. x-coordinate: .
  3. Check y: . ✓
  4. So P divides AB in the ratio 2 : 7.
OR
Q23 (OR) (OR)2 marksVery Short AnswerCoordinate Geometry

Prove that the points (3, 0), (6, 4) and (–1, 3) are the vertices of an isosceles triangle.

Show answer & solution
Answer: Proved.
  1. Let A(3, 0), B(6, 4), C(–1, 3).
  2. , , .
  3. AB = AC (and the points are not collinear since ), so ABC is an isosceles triangle.
Q242 marksVery Short AnswerPolynomials

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

Show answer & solution
Answer:
  1. and .
  2. .
Also asked in: 2024 Standard 30/5/1
Q252 marksVery Short AnswerIntroduction to Trigonometry

Evaluate :

Show answer & solution
Answer: (i.e. )
  1. Numerator .
  2. Denominator .
  3. Value .
Q263 marksShort AnswerIntroduction to Trigonometry

Prove that :

Show answer & solution
Answer: Proved.
  1. LHS .
  2. .
  3. .
  4. So LHS = RHS.
Q273 marksShort AnswerAreas Related to Circles

A sector is cut from a circle of radius 21 cm. The central angle of the sector is . Find the length of the arc of this sector and the area of the sector.

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Answer: Arc length = 55 cm; area = 577.5 cm²
  1. Arc length cm.
  2. Area cm².
Q283 marksShort AnswerReal Numbers

Prove that is an irrational number.

Show answer & solution
Answer: Proved.
  1. Suppose is rational: with co-prime integers, .
  2. Then , so 3 divides and hence 3 divides . Write .
  3. , so 3 divides and hence 3 divides .
  4. So 3 is a common factor of and , contradicting that they are co-prime.
  5. Hence is irrational.
OR
Q28 (OR) (OR)3 marksShort AnswerReal Numbers

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

Show answer & solution
Answer: Proved.
  1. .
  2. Suppose , a rational number.
  3. Then , which is rational.
  4. This contradicts the fact that is irrational.
  5. Hence is irrational.
Q293 marksShort AnswerProbability

Three unbiased coins are tossed simultaneously. Find the probability of getting :
(i) at least one head.
(ii) exactly one tail.
(iii) two heads and one tail.

Show answer & solution
Answer: (i) (ii) (iii)
  1. Outcomes: HHH, HHT, HTH, THH, HTT, THT, TTH, TTT (8 equally likely).
  2. (i) Only TTT has no head, so P(at least one head) .
  3. (ii) Exactly one tail: HHT, HTH, THH, so P .
  4. (iii) Two heads and one tail: HHT, HTH, THH, so P .
Also asked in: 2024 Standard 30/5/1
Q303 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. So all four sides are equal and ABCD is a rhombus.
Q313 marksShort AnswerArithmetic Progressions

If the sum of the first 14 terms of an A.P. is 1050 and the first term is 10, then find the term and the term.

Show answer & solution
Answer: ,
  1. .
  2. .
  3. .
OR
Q31 (OR) (OR)3 marksShort AnswerArithmetic Progressions

The first term of an A.P. is 5, the last term is 45 and the sum of all the terms is 400. Find the number of terms and the common difference of the A.P.

Show answer & solution
Answer: ,
  1. .
  2. .
Q325 marksLong AnswerTriangles

In the given figure, and .
Prove that .

Diagram for CBSE 2024 Class 10 Maths question 32
Show answer & solution
Answer: Proved.
  1. From , the corresponding sides give EC = DB (CPCT).
  2. means , so AD = AE (sides opposite equal angles).
  3. Hence , and by the converse of BPT, DE BC.
  4. So and (corresponding angles), and is common.
  5. Therefore (AA similarity).
OR
Q32 (OR) (OR)5 marksLong AnswerTriangles

Sides AB and AC and median AD of a are respectively proportional to sides PQ and PR and median PM of another . Show that .

Show answer & solution
Answer: Proved.
  1. Given .
  2. Produce AD to E with DE = AD and join EC; produce PM to N with MN = PM and join NR.
  3. (SAS: BD = DC, AD = DE, vertically opposite angles), so EC = AB; similarly NR = PQ.
  4. Then (as AE = 2AD, PN = 2PM), so (SSS) and .
  5. Similarly, using (BE = AC) and , we get .
  6. Adding, . With , (SAS similarity).
Q335 marksLong AnswerQuadratic Equations

Find the value of 'k' for which the quadratic equation , has real and equal roots.

Show answer & solution
Answer:
  1. For equal roots, .
  2. .
  3. .
  4. Since , , so .
  5. Check: the equation becomes , i.e. , with equal roots 3, 3.
Also asked in: 2024 Standard 30/5/1
OR
Q33 (OR) (OR)5 marksLong AnswerQuadratic Equations

The age of a man is twice the square of the age of his son. Eight years hence, the age of the man will be 4 years more than three times the age of his son. Find their present ages.

Show answer & solution
Answer: Son: 4 years, man: 32 years
  1. Let the son's present age be years; the man's age is years.
  2. After 8 years: .
  3. .
  4. Age cannot be negative, so .
  5. Son is 4 years old and the man is years old. (Check: in 8 years, 40 = 3 × 12 + 4.)
Also asked in: 2024 Standard 30/5/1

From a window 15 metres high above the ground in a street, the angles of elevation and depression of the top and the foot of another house on the opposite side of the street are and respectively. Find the height of the opposite house. (Use = 1.732)

Show answer & solution
Answer: m
  1. Let W be the window, 15 m above the ground, and let the opposite house be CD with foot D and top C. Draw WE CD.
  2. Angle of depression of D is : , so the width of the street WE = 15 m, and ED = 15 m.
  3. Angle of elevation of C is : , so m.
  4. Height of the house m.
Q355 marksLong AnswerSurface Areas and Volumes

A juice seller was serving his customers using glasses as shown in the figure. The inner diameter of the cylindrical glass was 5.6 cm, but the bottom of the glass had a hemispherical raised portion which reduced the capacity of the glass. If the height of the glass was 10 cm, find the apparent capacity and the actual capacity of the glass.

Diagram for CBSE 2024 Class 10 Maths question 35
Show answer & solution
Answer: Apparent capacity = 246.4 cm³; actual capacity ≈ 200.41 cm³
  1. Radius cm, height cm.
  2. Apparent capacity cm³.
  3. Volume of the hemisphere cm³.
  4. Actual capacity cm³.
Q364 marksCase StudyCoordinate Geometry

A garden is in the shape of a square. The gardener grew saplings of Ashoka tree on the boundary of the garden at the distance of 1 m from each other. He wants to decorate the garden with rose plants. He chose a triangular region inside the garden to grow rose plants. In the above situation, the gardener took help from the students of class 10. They made a chart for it which looks like the given figure.
Based on the above, answer the following questions :
(i) If A is taken as origin, what are the coordinates of the vertices of ? (1)
(ii) (a) Find distances PQ and QR. (2)
OR
(b) Find the coordinates of the point which divides the line segment joining points P and R in the ratio 2 : 1 internally. (2)
(iii) Find out if is an isosceles triangle. (1)

Diagram for CBSE 2024 Class 10 Maths question 36
Show answer & solution
Answer: (i) P(4, 6), Q(3, 2), R(6, 5) (ii) (a) PQ = m, QR = m OR (b) (iii) No, it is not isosceles
  1. (i) Taking A as origin with AD along the x-axis and AB along the y-axis (1 unit = 1 m): P(4, 6), Q(3, 2), R(6, 5).
  2. (ii) (a) m; m.
  3. (ii) (b) Point .
  4. (iii) . PQ, QR, PR = are all different, so is not isosceles.
Q374 marksCase StudyStatistics

Activities like running or cycling reduce stress and the risk of mental disorder like depression. Running helps build endurance. Children develop stronger bones and muscles and are less prone to gain weight. The physical education teacher of a school has decided to conduct an inter school running tournament in his school premises. The time taken by a group of students to run 100 m, was noted as follows :
Time (in seconds): 0–20, 20–40, 40–60, 60–80, 80–100
Number of students: 8, 10, 13, 6, 3
Based on the above, answer the following questions :
(i) What is the median class of the above given data ? (1)
(ii) (a) Find the mean time taken by the students to finish the race. (2)
OR
(b) Find the mode of the above given data. (2)
(iii) How many students took time less than 60 seconds ? (1)

Show answer & solution
Answer: (i) 40–60 (ii) (a) 43 seconds OR (b) 46 seconds (iii) 31
  1. Total ; cumulative frequencies: 8, 18, 31, 37, 40.
  2. (i) lies in the class with cf 31, so the median class is 40–60.
  3. (ii) (a) Class marks 10, 30, 50, 70, 90; ; mean seconds.
  4. (ii) (b) Modal class 40–60: , , , , ; mode seconds.
  5. (iii) students.

Essel World is one of India’s largest amusement parks that offers a diverse range of thrilling rides, water attractions and entertainment options for visitors of all ages. The park is known for its iconic “Water Kingdom” section, making it a popular destination for family outings and fun-filled adventure. The ticket charges for the park are ₹ 150 per child and ₹ 250 per adult.
On a day, the cashier of the park found that 300 tickets were sold and an amount of ₹ 55,000 was collected.
Based on the above, answer the following questions :
(i) If the number of children visited be and the number of adults visited be , then write the given situation algebraically. (1)
(ii) (a) How many children visited the amusement park that day ? (2)
OR
(b) How many adults visited the amusement park that day ? (2)
(iii) How much amount will be collected if 250 children and 100 adults visit the amusement park ? (1)

Show answer & solution
Answer: (i) , (ii) (a) 200 children OR (b) 100 adults (iii) ₹ 62,500
  1. (i) and , i.e. .
  2. Substituting : , .
  3. (ii) (a) 200 children visited.
  4. (ii) (b) 100 adults visited.
  5. (iii) .
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