Class 10 Maths · 3 hours · 80 marks
CBSE Class 10 Maths Sample Paper 2
Set in the board's pattern for 2024 to 2026. Write it in 3 hours, then check with the marking scheme and solutions.
- All questions are compulsory. Internal choice is given in some questions; attempt one of the alternatives.
- Section A has 20 objective questions of 1 mark each: multiple-choice and assertion-reason.
- Section B has very short answer questions of 2 marks; Section C short answer questions of 3 marks; Section D long answer questions of 5 marks; Section E case-based questions of 4 marks.
- Wherever necessary, draw neat, labelled diagrams. Calculators are not allowed.
- For the assertion-reason questions, choose: (a) Both A and R are true, and R is the correct explanation of A. (b) Both A and R are true, but R is not the correct explanation of A. (c) A is true, but R is false. (d) A is false, but R is true.
Section A (20 × 1 mark)
Question 1 · 1 mark
In ΔXYZ, right-angled at Y, XY = 7 cm, YZ = 24 cm and XZ = 25 cm. The value of tan Z is
Question 2 · 1 mark
The weights of 36 sacks of rice at a godown in Raipur are grouped below. The modal class is
| Weight (kg) | Number of sacks |
|---|---|
| 45-50 | 5 |
| 50-55 | 9 |
| 55-60 | 12 |
| 60-65 | 7 |
| 65-70 | 3 |
Question 3 · 1 mark
The distance between the points A(1, −2) and B(7, 6) is
Question 4 · 1 mark
A cone has base radius 6 cm and height 8 cm. Take π = 3.14. Its curved surface area is
Question 5 · 1 mark
ΔABC ~ ΔDEF and ΔDEF ~ ΔPQR. Which of these must be true?
Question 6 · 1 mark
A box at a sweet shop in Mathura holds 40 laddoos, of which 15 are kesar laddoos and the rest are plain. One laddoo is taken out at random. The probability that it is a kesar laddoo is
Question 7 · 1 mark
The lines x = 4 and y = −1 meet at
Question 8 · 1 mark
The sum of the first 20 terms of the AP 3, 7, 11, . . . is
Question 9 · 1 mark
Assertion (A): The values of a scooter that loses 10% of its value every year, recorded at the end of each year, form an AP. Reason (R): In an AP each term after the first is obtained by adding a fixed number to the preceding term.
Question 10 · 1 mark
Assertion (A): From a point 17 cm from the centre of a circle of radius 8 cm, each of the two tangents is 15 cm long. Reason (R): A circle has infinitely many tangents.
Question 11 · 1 mark
The length of the tangent from a point 17 cm from the centre of a circle of radius 8 cm is
Question 12 · 1 mark
Which of the following is a quadratic equation?
Question 13 · 1 mark
Which of the following lists is an AP?
Question 14 · 1 mark
Which of the following statements is true?
Question 15 · 1 mark
A polynomial p(x) has degree 5. The greatest number of points at which the graph of y = p(x) can meet the x-axis is
Question 16 · 1 mark
In the step deviation method, the assumed mean is 55 and the class size is 10. For the class with class mark 75, uᵢ is
Question 17 · 1 mark
The value of 2 sin 30° + √3 cos 30° is
Question 18 · 1 mark
The prime factorisation of 180 is
Question 19 · 1 mark
The part of a circular region enclosed between a chord and the arc it cuts off is called
Question 20 · 1 mark
From the top of a cliff, the angle of depression of a boat at sea is 30°. The angle of elevation of the top of the cliff, seen from the boat, is
Section B (5 × 2 marks)
Question 21 · 2 marks
The area of a circle is 616 cm² and a sector of it has area 154 cm². Find the angle of the sector and the length of its arc. Take π = 22/7.
Or The circumference of a circle is 264 cm and an arc of it is 88 cm long. Find the angle the arc subtends at the centre and the area of the corresponding sector. Take π = 22/7.
Question 22 · 2 marks
Explain why equal corresponding angles are enough to show that two triangles are similar, but not enough for two quadrilaterals. Give an example for quadrilaterals.
Question 23 · 2 marks
The zeroes of x2 + (k − 4)x − 9 are negatives of each other. Find k and the zeroes.
Question 24 · 2 marks
A bag has 10 tokens marked with a star and some plain tokens. A token is drawn at random, and the probability that it is plain is 13. Find the number of plain tokens.
Question 25 · 2 marks
A boy whose eyes are 1.35 m above the ground sees the top of a 21.35 m tall flag-mast at an angle of elevation of 45°. How far from the mast is he standing?
Section C (6 × 3 marks)
Question 26 · 3 marks
The total rainfall in July (in mm) at 50 weather stations in Assam is given below. Find the mean rainfall by the step deviation method.
| Rainfall (mm) | Number of stations |
|---|---|
| 100-150 | 4 |
| 150-200 | 9 |
| 200-250 | 16 |
| 250-300 | 13 |
| 300-350 | 8 |
Question 27 · 3 marks
TP and TQ are tangents from T to a circle. A third tangent touches the circle at R on the minor arc PQ and meets TP at A and TQ at B, as in the figure. Prove that the perimeter of ΔTAB equals 2TP. Find the perimeter when TP = 12 cm.
Question 28 · 3 marks
If 5 tan θ = 12, where θ is acute, find the value of 2 sin θ − cos θsin θ + 3 cos θ.
Question 29 · 3 marks
Solve 3x + 2y = 12 and 5x − 3y = 1 by elimination, and hence find m for which y = mx − 1.
Question 30 · 3 marks
Find the values of k for which (k + 1)x2 − 2(k − 1)x + 1 = 0 has two equal roots. Find the roots for the positive value of k.
Or Find the value of k for which x2 − 2(k + 1)x + k2 = 0 has two equal roots, and find those roots.
Question 31 · 3 marks
A cylindrical flower vase has inner radius 2.1 cm and height 14 cm, but its base rises inside it as a hemisphere of radius 2.1 cm. Take π = 22/7. Find how much water the vase holds when full, and what percentage of its apparent capacity is lost to the raised base.
Section D (4 × 5 marks)
Question 32 · 5 marks
Ankit's mother is 24 years older than Ankit. Five years from now, the product of their ages (in years) will be 432. (a) Form a quadratic equation in Ankit's present age x. (b) Find the present ages of Ankit and his mother.
Or The sum of the present ages of two sisters, Riya and Tara, is 22 years. Three years ago, the product of their ages (in years) was 63. (a) Form a quadratic equation in Riya's present age x. (b) Find their present ages.
Question 33 · 5 marks
(a) State and prove the Basic Proportionality Theorem. (b) In ΔLMN, P lies on LM and Q on LN with PQ ∥ MN. If LP = 3.5 cm, PM = 6.5 cm and LQ = 4.2 cm, find LN.
Or (a) Prove that if in two triangles the corresponding angles are equal, then their corresponding sides are in the same ratio. (b) In ΔABC and ΔDEF, ∠A = ∠D and ∠B = ∠E. AB = 5 cm, BC = 7 cm, DE = 7.5 cm and DF = 9 cm. Find EF and AC.
Question 34 · 5 marks
A straight level road runs away from the foot of a 120 m tall watchtower. A guard at the top sees a bus moving away along the road at uniform speed. Its angle of depression is 60° at first and 45° two minutes later. (a) Find the bus's distances from the foot at the two sightings. (b) Find its speed. (c) How many more minutes will it take for the angle of depression to become 30°? (Use √3 ≈ 1.73.)
Or A hot-air balloon rises vertically at a uniform speed from a point O on level ground. Rohan stands at P, 60 m from O. Eight seconds after it leaves O, he sees the balloon at an angle of elevation of 30°. (a) Find the balloon's speed. (b) After how many seconds from the start is its angle of elevation 45°? (c) After how many seconds is it 60°? (Use √3 ≈ 1.73.)
Question 35 · 5 marks
A toy shop in Chennai has a box of 40 balls, some red and the rest yellow. For a ball taken out at random, P(red) = 38. (a) Find the number of red balls. (b) Find P(yellow). (c) If 10 more red balls are put into the original box, find the new P(red). (d) Starting again from the original box, how many yellow balls must be taken out so that P(red) becomes 35?
Or A stationery shop in Bengaluru has a box of 36 pens, some blue and the rest black. For a pen taken out at random, P(blue) = 512. (a) Find the number of blue pens. (b) Find P(black). (c) If 9 more blue pens are put into the original box, find the new P(blue). (d) Starting again from the original box, how many black pens must be taken out so that P(blue) becomes 34?
Section E (3 × 4 marks)
Question 36 · 4 marks
Kavya, a Class 10 student in Kochi, made a table of the sine and cosine of some standard angles for her revision notes. She wants to use it to find the other ratios, since tan A = sin A ÷ cos A, and to see how the values change as the angle grows from 0° to 90°.
| A | 0° | 30° | 45° | 60° | 90° |
|---|---|---|---|---|---|
| sin A | 0 | 1/2 | 1/√2 | √3/2 | 1 |
| cos A | 1 | √3/2 | 1/√2 | 1/2 | 0 |
(a) As A increases from 0° to 90°, the table shows that [1]
(b) Using the table, the value of tan 60° is [1]
(c) Kavya tries to find tan 90° from her table. Explain why tan 90° is not defined, and name one other ratio that is not defined at 90°. [2]
Or Kavya tries to find cot 0° from her table. Explain why cot 0° is not defined, and name one other ratio that is not defined at 0°.
Question 37 · 4 marks
A caterer at a wedding hall in Indore stacks identical plastic cups one inside another. A single cup stands 11 cm tall, and each cup added to the stack raises its height by 1.5 cm, so stacks of 1, 2, 3, . . . cups are 11 cm, 12.5 cm, 14 cm, . . . tall. The cups are stored on shelves, and the caterer wants to know how tall different stacks will be and how many cups fit in a given height.
(a) The height of a stack of 20 cups is [1]
(b) The number of cups in a stack 50 cm tall is [1]
(c) A shelf has 80 cm of clear height. Find the largest number of cups that can stand in one stack on it, and the height of that stack. [2]
Or A second kind of cup stands 9 cm tall alone, and each added cup raises its stack by 2 cm. For what number of cups are the two kinds of stack equally tall, and what is that height?
Question 38 · 4 marks
A park in Jaipur has a circular flower bed with centre O and radius 28 m. From the park gate G, two straight paths GA and GB are laid so that each just touches the edge of the bed, at A and at B, as in the figure. The gate is 53 m from the centre of the bed. The gardener wants to know the lengths of the paths and the angles they make, so that he can order the paving stones and edge the paths with a hedge.
(a) The angle between the radius OA and the path GA is [1]
(b) The length of the path GA is [1]
(c) If ∠AOB is four times ∠AGB, find ∠AGB and ∠AOB. [2]
Or Find the total length of hedge needed along both paths and the two radii OA and OB, that is, the perimeter of OAGB.