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ARYA VIDYA MANDIR GROUP OF SCHOOLS PRELIM REVIEW- JANUARY 2023 Std: X MATHEMATICS Marks:80 Date: 06/01/2023 Time: 2 hr ----------------------------------------------------------------------------------------------------------------Answers to this paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of the paper is the time allotted for writing the answers. ----------------------------------------------------------------------------------------------------------------Attempt all the questions from Section A and any four questions from Section B All essential working should be clearly shown whenever needed on the same sheet. The omission of the essential working will result in the loss of marks. Do the rough working at the bottom of the paper. The intended marks for questions or parts of questions are given in the brackets [ ]. This paper comprises 10 printed pages. ----------------------------------------------------------------------------------------------------------------Section - A (40 marks) (Attempt all the questions from this Section) Question 1 Choose the correct answers to the questions from the given options: (i) [15] If the discriminant of quadratic equation ax2 + bx + c = 0 is equal to zero, then two equal roots are: (a) 2 (b) 2 (c) (d) 2 2
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