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CBSE Class 10 Pre Board 2021 : Mathematics Basic - Set 1 (CBSE Gulf Sahodaya Qatar Chapter, Doha)

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PRE-BOARD EXAMINATION-2020-21 SUBJECT MATHEMATICS- BASIC Class: X (CBSE) Total Marks: 80 Date . Time: 3 hrs General instructions: 1. This question paper contains two parts A and B. 2. Both Part A and Part B have internal choices. Part A : 1. It consists of two sections I and II 2. Section I has 16 questions. Internal choice is provided in 5 questions. 3. Section II has four case study-based questions. Each case study has 5 case-based subparts. An examinee is to attempt any 4 out of 5 sub-parts. Part B: 1. Question No 21 to 26 are Very short answer Type questions of questions 2 marks each. 2. Question No 27 to 33 are Short answer Type questions of 3 marks each. 3. Question No 34 to 36 are Long answer Type questions of 5 marks each. 4. Internal choice is provided in 2 questions of 2 marks, 2 questions of 3 marks and 1 question of 5 marks. PART A Section I Section I has 16 questions of 1 mark each. Internal choice is provided in 5 questions. 1. Express 132 as the product of primes. 1 2. Write a quadratic polynomial, sum of whose zeroes is 5 and product is -14. 1 3. Given that HCF (306, 657) = 9, find LCM(306,657) OR State the fundamental theorem of arithmetic. 1 4. Find the value of k for which the following equations are inconsistent. x-4y = 6 3x + ky = 5 1 5. Find the HCF of the smallest composite number and the smallest prime number. 1 6. Find the area of a sector of a circle with radius 6 cm and sector angle 60 . (Take = 7 ) OR Find the area of a quadrant of a circle whose circumference is 22 cm. 1 7. In figure, if DE BC then find x 1 22 Page 1 of 8

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