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Board Paper of Class 10 Maths (Standard) Term-II 2022 Delhi(Set 2) - Solutions

General Instructions:

(i) This question paper contains 14 questions. All questions are compulsory.

(ii) This Question Paper is divided into 3 Sections – Section A, B and C.

(iii) Section – A comprises of 6 questions (Q. Nos. 1 to 6) of 2 marks each.

Internal choice has been provided in two questions.

(iv) Section – B comprises of 4 questions (Q. Nos. 7 to 10) of 3 marks each.

Internal choice has been provided in one question.

(v) Section – C comprises of 4 questions (Q. Nos. 11 to 14) of 4 marks each.

An internal choice has been provided in one question. It also contains two case study based questions.

(vi) Use of calculator is not permitted.

  • Question 1
    A solid piece of metal in the form of a cuboid of dimensions 11 cm × 7 cm × 7 cm is melted to form 'n' number of solid spheres of radii 72 cm each. Find the value of n. VIEW SOLUTION

  • Question 2
    In Fig. AB is diameter of a circle centered at O. BC is tangent to the circle at B. If OP bisects the chord AD and ∠AOP = 60º, then find  m ∠C.


    In Fig. XAY is a tangent to the circle centered at O. If ∠ABO = 40º, then find m ∠BAY and m ∠AOB.

  • Question 3
    Find a and b so that the numbers a, 7, b, 23 are in A.P.


    Which term of the A.P. -112,-3,-12,... is 492? VIEW SOLUTION

  • Question 4
    Find the sum of first 20 terms of an A.P. whose nth term is given as an= 5 - 2n. VIEW SOLUTION

  • Question 5
    Solve the quadratic equation: x2 – 2ax + (a2 – b2) = 0 for x. VIEW SOLUTION

  • Question 6
    If mode of the following frequency distribution is 55, then find the value of x.
    Class: 0 - 15 15 - 30 30 - 45 45 - 60 60 - 75 75 - 90
    Frequency: 10 7 x 15 10 12

  • Question 7
    Heights of 50 students of class X of a school are recorded and following data is obtained:
    Height (in cm): 130-135 135-140 140-145 145-150 150-155 155-160
    Number of Students: 4 11 12 7 10 6

    ​Find the median height of the students. VIEW SOLUTION

  • Question 8
    The mean of the following frequency distribution is 25. Find the value of f.
    Class : 0 - 10 10 - 20 20 - 30 30 - 40 40 - 50
    Frequency: 5 18 15 f 6


    Find the mean of the following data using assumed mean method :
    Class : 0 - 5 5 - 10 10 - 15 15 - 20 20 - 25
    Frequency: 8 7 10 13 12

  • Question 9
    Two men on either side of a cliff 75 m high observe the angles of elevation of the top of the cliff to be 30° and 60°. Find the distance between the two men.

  • Question 10
    Construct a pair of tangents to a circle of radius 3 cm which are inclined to each other at an angle of 60°. VIEW SOLUTION

  • Question 11
    The sum of two numbers is 34. If 3 is subtracted from one number and 2 is added to another, the product of these two numbers becomes 260. Find the numbers.


    The hypotenuse (in cm) of a right angled triangle is 6 cm more than twice the length of the shortest side. If the length of third side is 6 cm less than thrice the length of shortest side, then find the dimensions of the triangle. VIEW SOLUTION

  • Question 12
    In Fig. PQ is a chord of length 8 cm of a circle of radius 5 cm. The tangents at P and Q meet at a point T. Find the length of TP.

  • Question 13
    Case Study – 1
    Kite Festival
    Kite festival is celebrated in many countries at different times of the year. In India, every year 14th January is celebrated as International Kite Day. On this day many people visit India and participate in the festival by flying various kinds of kites.
    The picture given below, shows three kites flying together.

    In Fig. the angles of elevation of two kites (Points A and B) from the hands of a man (Point C) are found to be 30° and 60° respectively. Taking AD = 50 m and BE = 60 m, find

    (1) the lengths of strings used (take them straight) for kites A and B as shown in the figure.
    (2) the distance 'd' between these two kites VIEW SOLUTION

  • Question 14
    Case Study – 2

    A 'circus' is a company of performers who put on shows of acrobats, clowns etc. to entertain people started around 250 years back, in open fields, now generally performed in tents.
    One such Circus Tent' is shown below.

    The tent is in the shape of a cylinder surmounted by a conical top. If the height and diameter of cylindrical part are 9 m and 30 m respectively and height of conical part is 8 m with same diameter as that of the cylindrical part, then find
    (1) the area of the canvas used in making the tent;
    (2) the cost of the canvas bought for the tent at the rate ₹200 per sq m, if 30 sq m canvas was wasted during stitching. VIEW SOLUTION
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