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TAMRALIPTA PUBLIC SCHOOL Pre Final Examination: 2023-24 Sub: Mathematics Class-X F.M-80 Time-2hr. 30min. ----------------------------------------------------------------------------------------------------(Students are allowed additional 15 minutes for only reading the paper, they must not start writing during this time.) Attempt all questions for Section A and any four questions from Section B. All working, including rough work, must be clearly shown, and must be done on the same sheet as the rest of the answer. ----------------------------------------------------------------------------------------------------SECTION A (Attempt all questions from this Section) Question1. [15x1=15] i) If a matrix has 8 elements then its order may be a) 2x6 b) 4x4 c) 2x4 d) None. ii) If f(x) = 2x25x-7 then the value of f(3) is a) 4 b)-4 c) 40 d) None. iii) Statement I GST is always calculated on the amount after deducting discount, if any, from it. Statement II Discount is never allowed on amount inclusive of GST. a) Statement I is correct b) Statement II is correct only e) Both statements are correct d) Both are false statement iv) For finding Discriminant of a quadratic Equation ax2+bx+c=0 which must be follow a) a 0 b) b 0 c) c 0 d) a, b, c=0 v) In an A.P, if a18-b14=32, then the common difference is a) 8 b) -8 c) -4 d) 4 vi) If x, 12, 8 and 32 are in proportion, then the value of x is a) 6 b) 4 c) 3 d) 2 vii) Which of the following cannot be probability of an event a) 0.7 b) 2/3 c) -1.5 d) 15% viii) The volumes of two spheres are in the ratio 64:27. The ratio of their surface area is a) 3:4 b) 4:3 c) 9:16 d) 16:9 ix) It is given that ABC ~ PQR with then is equals to a) 9 b) 3 c) 1/3 d) 1/9 x) In a right triangle ABC; right angled at B, BC=12cm and AB=5cm, the radius of the circle inscribed in the triangle is a) 1cm b) 2cm c) 3cm d) 4cm
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