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Sample Question Paper, Mathematics- Standard (041), Class- X, Session: 2021-22, TERM II, , Time Allowed: 2 hours, , Maximum Marks: 40, , General Instructions:, 1., The question paper consists of 14 questions divided into 3 sections A, B, C., 2., All questions are compulsory., 3., Section A comprises of 6 questions of 2 marks each. Internal choice has been provided in, two questions., 4., Section B comprises of 4questions of 3 marks each. Internal choice has been provided in, one question., 5., Section C comprises of 4 questions of 4 marks each. An internal choice has been provided, in one question. It contains two case study based questions., , Section A, Q No, 1, , 2, 3, , Find the value of a25 - a15 for the AP: 6, 9, 12, 15, ……….., OR, If 7 times the seventh term of the AP is equal to 5 times the fifth term, then, find the value of its 12th term., Find the value of 𝑚 so that the quadratic equation 𝑚𝑥(5𝑥 − 6) = 0 has two, equal roots., From a point P, two tangents PA and PB are drawn to a circle C(0, r)., If OP = 2r, then find ∠𝐴𝑃𝐵. What type of triangle is APB?, , Marks, 2, , 2, 2, , A, r, , 2r, P, , O, B, , 4, 5, , The curved surface area of a right circular cone is 12320 cm². If the radius of its, base is 56cm, then find its height., Mrs. Garg recorded the marks obtained by her students in the following table., She calculated the modal marks of the students of the class as 45. While, printing the data, a blank was left. Find the missing frequency in the table given, below, ., Marks, 0 - 20, 20 - 40, 40 - 60, 60 - 80, 80 - 100, Obtained, , 2, 2

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Number of, Students, 6, , 5, , 10, , ---, , 6, , 3, , If Ritu were younger by 5 years than what she really is, then the square of her, age would have been 11 more than five times her present age. What is her, present age?, OR, , 2, , Solve for x: 9x² - 6px + (p² - q²) = 0, Section-B, 7, , Following is the distribution of the long jump competition in which 250 students, participated. Find the median distance jumped by the students. Interpret the, median, Distance, (in m), Number of, Students, , 0-1, , 1-2, , 2-3, , 3-4, , 4-5, , 40, , 80, , 62, , 38, , 30, , 3, , 8, , Construct a pair of tangents to a circle of radius 4cm, which are inclined to, each other at an angle of 60°., , 3, , 9, , The distribution given below shows the runs scored by batsmen in one-day, cricket matches. Find the mean number of runs., , 3, , 10, , Runs, scored, , 0 - 40, , 40 - 80, , 80 - 120, , 120 - 160, , 160 - 200, , Number of, batsmen, , 12, , 20, , 35, , 30, , 23, , Two vertical poles of different heights are standing 20m away from each other, on the level ground. The angle of elevation of the top of the first pole from the, foot of the second pole is 60° and angle of elevation of the top of the second, pole from the foot of the first pole is 30°. Find the difference between the heights, of two poles. (Take √3 = 1.73), OR, , 3, , A boy 1.7 m tall is standing on a horizontal ground, 50 m away from a building., The angle of elevation of the top of the building from his eye is 60°. Calculate, the height of the building. (Take √3 = 1.73), Section-C, 11, , The internal and external radii of a spherical shell are 3cm and 5cm, respectively. It is melted and recast into a solid cylinder of diameter 14cm, find, the height of the cylinder. Also find the total surface area of the cylinder., 22, (Take 𝜋 = 7 ), , 4

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12, , Prove that the angle between the two tangents drawn from an external point to, a circle is supplementary to the angle subtended by the line segment joining the, points of contact to the centre., OR, , 4, , Two tangents TP and TQ are drawn to a circle with centre O from an external, point T. Prove that ∠𝑃𝑇𝑄 = 2∠𝑂𝑃𝑄, , 13, , Case Study-1, Trigonometry in the form of triangulation forms the basis of navigation, whether, it is by land, sea or air. GPS a radio navigation system helps to locate our, position on earth with the help of satellites., A guard, stationed at the top of a 240m tower, observed an unidentified boat, coming towards it. A clinometer or inclinometer is an instrument used for, measuring angles or slopes(tilt). The guard used the clinometer to measure the, angle of depression of the boat coming towards the lighthouse and found it to, be 30°., , (Lighthouse of Mumbai Harbour. Picture credits - Times of India Travel), i) Make a labelled figure on the basis of the given information and calculate, the distance of the boat from the foot of the observation tower., ii) After 10 minutes, the guard observed that the boat was approaching the, tower and its distance from tower is reduced by 240(√3 - 1) m. He, immediately raised the alarm. What was the new angle of depression of, the boat from the top of the observation tower?, 14, , Case Study-2, Push-ups are a fast and effective exercise for building strength. These are, helpful in almost all sports including athletics. While the push-up primarily, targets the muscles of the chest, arms, and shoulders, support required from, other muscles helps in toning up the whole body., , 2, , 2

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Nitesh wants to participate in the push-up challenge. He can currently make, 3000 push-ups in one hour. But he wants to achieve a target of 3900 push-ups, in 1 hour for which he practices regularly. With each day of practice, he is able, to make 5 more push-ups in one hour as compared to the previous day. If on, first day of practice he makes 3000 push-ups and continues to practice regularly, till his target is achieved. Keeping the above situation in mind answer the, following questions:, i) Form an A.P representing the number of push-ups per day and hence, find the minimum number of days he needs to practice before the day, his goal is accomplished?, ii) Find the total number of push-ups performed by Nitesh up to the day his, goal is achieved., , 2, , 2