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CBSE Class 10 Exam 2023 : Mathematics : Quadratic Equations

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MATHEMATICS TEST QUADRATIC EQUATIONS TEST - 2 CLASS X Time: 1 HOUR Date: August 2, 2023 Total marks: 30 SECTION - A Answer ALL the questions. Choose the correct answer. 3 1=3 V 1. If the sum of the squares of the zeroes of a quadratic polynomial P (x) = x2 8x + k is 40, then the value if k is (A) 9 (B) 12 (C) 11 (D) 14 M 2. If x = 1 is a common root of the equations ax2 + ax + 3 = 0 and x2 + x + b = 0, then ab = (A) 3 (B) 3.5 (C) 6 (D) -3 S 3. If and are the zeroes of the quadratic polynomial Q(x) = x2 +px+q, then a polynomial with 1 and 1 as its zeros are (A) x2 +qx+p (B) x2 px+q (C) qx2 +px+1 (D) px2 +qx+1 SECTION - B Answer ALL of the following questions. 4. Find the zeroes of the polynomial 4 5x2 17x + 3 5 = 0. 3 2=6 Or Solve for x: 6x + 7 (2x 7) = 0. 5. A girl is twice as old as her sister. Four years hence, the product of their age (in yaers) will be 160. Find their present ages. 1

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