CBSE Board | Homework Help

Date sheet | OMR Sheet CBSE Sample Paper (2021-22) Class-10 Mathematics (Basic) Time Allowed: 90 minutes Maximum Marks: 40 General Instructions: The question paper contains three parts A, B and C. Section A consists of 20 questions of 1 mark each. Attempt any 16 questions. Section B consists of 20 questions of 1 mark each. Attempt any 16 questions. Section C consists of 10 questions based on two Case Studies. Attempt any 8 questions. There is no negative marking. SECTION A Section A consists of 20 questions. Any 16 questions are to be attempted A box contains cards numbered 6 to 50. A card is drawn at random from the box. The probability that the drawn card has a number which is a perfect square like 4,9….is In a circle of diameter 42cm, if an arc subtends an angle of 60o at the centre where = , then the length of the arc is cm 11 cm 22 cm 44 cm If sin = x and sec = y, then tan is xy The pair of linear equations y = 0 and y = -5 has One solution Two solutions Infinitely many solutions No solution A fair die is thrown once. The probability of even composite number is 0 1 8 chairs and 5 tables cost ₹ 10500, while 5 chairs and 3 tables cost ₹ 6450. The cost of each chair will be ₹ 750 ₹ 600 ₹ 850 ₹ 900 If cos + cos2 = 1, the value of sin2 + sin4 is -1 0 1 2 The decimal representation of will be Terminating Non-terminating Non-terminating and repeating Non-terminating and non-repeating The LCM of 23 32 and 22 33 is 23 33 23 33 22 32 The HCF of two numbers is 18 and their product is 12960. Their LCM will be 420 600 720 800 In the given figure, DE BC. Which of the following is true? The co-ordinates of the point P dividing the line segment joining the points A (1, 3) and B (4, 6) internally in the ratio 2:1 are (2, 4) (4, 6) (4, 2) (3, 5) The prime factorisation of 3825 is 3 52 21 32 52 35 32 52 17 32 25 17 In the figure given below, AD = 4cm,BD = 3cm and CB = 12 cm, then cot equals If ABCD is a rectangle , find the values of x and y X = 10, y = 2 X = 12, y = 8 X = 2, y = 10 X = 20, y = 0 In an isosceles triangle ABC, if AC = BC and AB2 = 2AC2, then the measure of angle C will be 30o 45o 60o 90o If -1 is a zero of the polynomial p(x) = x2 - 7x - 8, then the other zero is -8 -7 1 8 In a throw of a pair of dice, the probability of the same number on each die is The mid-point of (3p, 4) and (-2, 2q) is (2, 6). Find the value of p + q 5 6 7 8 The decimal expansion of will terminate after how many places of decimals? 1 2 3 4 SECTION B Section B consists of 20 questions of 1 mark each. Any 16 questions are to be attempted The perimeter of a semicircular protractor whose radius is ‘r’ is + 2r + r r r + 2r If P (E) denotes the probability of an event E, then 0< P(E) 1 0 < P(E) < 1 0 P(E) 1 0 P(E) <1 In ABC, ˂B=90o and BD AC. If AC = 9cm and AD = 3 cm then BD is equal to cm cm cm cm The pair of linear equations 3x + 5y = 3 and 6x + ky = 8 do not have a solution if K = 5 K = 10 K 10 K 5 If the circumference of a circle increases from 2 to 4 then its area ________ the original area Half Double Three times Four times Given that sin = ,then tan is equal to If x = 2sin2 and y = 2cos2 + 1 then x + y is 3 2 1 If the difference between the circumference and the radius of a circle is 37cm , = , the circumference (in cm) of the circle is 154 44 14 7 The least number that is divisible by all the numbers from 1 to 10 (both inclusive) 100 1000 2520 5040 Three bells ring at intervals of 4, 7 and 14 minutes. All three rang at 6 AM. When will they ring together again? 6:07 AM 6:14 AM 6:28 AM 6:25 AM What is the age of father, if the sum of the ages of a father and his son in years is 65 and twice the difference of their ages in years is 50? 40 years 45 years 55 years 65 years What is the value of (tan cosec) 2 -(sin sec)2 -1 0 1 2 The perimeters of two similar triangles are 26 cm and 39 cm.The ratio of their areas will be 2:3 6:9 4:6 4:9 There are 20 vehicles-cars and motorcycles in a parking area. If there are 56 wheels together, how many cars are there? 8 10 12 20 A man goes 15m due west and then 8m due north. How far is he from the starting point? 7m 10m 17m 23m What is the length of an altitude of an equilateral triangle of side 8cm? cm cm cm cm If the letters of the word RAMANUJAN are put in a box and one letter is drawn at random. The probability that the letter is A is Area of a sector of a circle is 1/6 to the area of circle. Find the degree measure of its minor arc. 90o 60o 45o 30o A vertical stick 20m long casts a shadow 10m long on the ground. At the same time a tower casts a shadow 50m long. What is the height of the tower? 30m 50m 80m 100m What is the solution of the pair of linear equations 37x + 43y = 123, 43x + 37y = 117? x = 2,y = 1 x = -1,y = 2 x = -2,y = 1 x = 1,y = 2 SECTION C Case study based questions Section C consists of 10 questions of 1 mark each. Any 8 questions are to be attempted. Case Study -1 Pacific Ring of Fire The Pacific Ring of Fire is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur. In a large horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and plate movements. https://commons.wikimedia.org/wiki/File:Pacifick%C3%BD_ohniv%C3%BD_kruh.png Fault Lines https://commons.wikimedia.org/wiki/File:Faults6.png Large faults within the Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Positions of some countries in the Pacific ring of fire is shown in the square grid below. Based on the given information, answer the questions NO. 41-45 The distance between the point Country A and Country B is 4 units 5 units 6 units 7 units Find a relation between x and y such that the point (x,y) is equidistant from the Country C and Country D x - y = 2 x + y = 2 2x - y = 0 2x + y = 2 The fault line 3x + y – 9 = 0 divides the line joining the Country P(1, 3) and Country Q(2, 7) internally in the ratio 3: 4 3: 2 2: 3 4: 3 The distance of the Country M from the x-axis is 1 units 2 units 3 units 5 units What are the co-ordinates of the Country lying on the mid-point of Country A and Country D? (1, 3) (2, ) (4, ) (, 2) Case Study -2 ROLLER COASTER POLYNOMIALS https://images.app.goo.gl/WfcM1aRTHijatvT27 Polynomials are everywhere. They play a key role in the study of algebra, in analysis and on the whole many mathematical problems involving them. Since, polynomials are used to describe curves of various types engineers use polynomials to graph the curves of roller coasters. Based on the given information, answer the questions NO. 46-50. If the Roller Coaster is represented by the following graph y = p(x) , then name the type of the polynomial it traces. Linear Quadratic Cubic Bi-quadratic The Roller Coasters are represented by the following graphs y=p(x). Which Roller Coaster has more than three distinct zeroes? If the Roller Coaster is represented by the cubic polynomial t(x) = px3 + qx2 + rx + s ,then which of the following is always true s 0 r 0 q 0 p 0 If the path traced by the Roller Coaster is represented by the above graph y = p(x), find the number of zeroes? 0 1 2 3 -3, -6, -1 2, -6, -1 -3, -1, 2 3, 1, -2

Posted by Udit Choubey 4 years, 2 months ago (12211678)

CBSE > Class 10 > Mathematics

2 answers

Parth Chaturvedi 4 years, 1 month ago (3505814)

Khana Kya chahte ho??

0 Thank You

Vishu Singh 4 years, 2 months ago (12237205)

.............

0 Thank You

ANSWER

Harshit Singh 4 years, 1 month ago (12208290)

And one more example......Mixing LEAD NITRATE solution WITH POTASSIUM IODIDE solution YOU WILL GET TO SEE A YELLOW COLOUR PRECIPITATE OF LEAD IODIDE One more example.....Iron nickel in Copper sulphate solution which is blue in colour reaction with iron its blue colour fades.

1 Thank You

Adarsh Dwivedi 4 years, 2 months ago (9587658)

When we react copper sulphate of blue colour solution with zinc metal. Because zinc is more reactive then copper zinc will displace the copper and it will colour brown.

5 Thank You

Reneti Manisha 4 years, 1 month ago (12308198)

The people were dissatisfied with British rule in the 1870s and 1880s due to the following reasons: The British were exercising control over the resources of India and the lives of its people. In 1878, the Arms Act was passed under which Indians were not allowed to possess arms.

Preeti Dabral 3 years ago (2983787)

The Indian Government launched the Digital India campaign to make government services available to citizens electronically by online infrastructure improvement and also by enhancing internet connectivity. It also aims to empower the country digitally in the domain of technology.

Ankit ............ 4 years, 1 month ago (11890259)

Scientific names are standardized and accepted University. 2. The organism can easily be characterized and making it easier to understand. 3. These organisms have unique scientific name which it makes them unique with their creature and also helps to avoid confusion created by common names. 4. It also helps to determine inter specific relationship by understanding the similarities and differences between different species of same genre.

myCBSEguide

CBSE, JEE, NEET, CUET

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers