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CBSE Board Exam 2018 Class 10 Maths Previous Papers With Solutions

CBSE Board Exam 2018 Class 10 Maths Papers

General instruction:

  1. All questions are compulsory.
  2. This question paper consists of 30 questions divided into four sections – A, B, C and D.
  3. Section A contains 6 questions of 1 mark each. Section B contains 6 questions of 2 marks each, Section C contains 10 questions of 3 marks each. Section D contains 8 questions of 4 marks each.
  4. There is no overall choice. However, an internal choice has been provided in four questions of 3 marks each and 3 questions of 4 marks each. You have to attempt only one of the alternatives in all such questions.
  5. Use of calculator is not permitted.

Section A: Question numbers 1 to 6 carry 1 mark each.

CBSE Board Exam 2018 Class 10 Maths Paper Ques 1

If x = 3 is one root of the quadratic equation x2 – 2kx – 6 = 0, then find the value of k.

CBSE Board Exam 2018 Class 10 Maths Paper Ques 2

What is the HCF of smallest prime number and the smallest composite number ?

CBSE Board Exam 2018 Class 10 Maths Paper Ques 3

Find the distance of a point P(x, y) from the origin.

CBSE Board Exam 2018 Class 10 Maths Paper Ques 4

In an AP, if the common difference (d) = –4, and the seventh term (a7) is 4, then find the
first term.

CBSE Board Exam 2018 Class 10 Maths Paper Ques 5

What is the value of (cos267° – sin223°) ?

CBSE Board Exam 2018 Class 10 Maths Paper Ques 6

Given \triangle ABC ~ \triangle PQR, if AB/PQ = 1/3, then find ar\triangleABC/ar\trianglePQR. 

Section B: Question numbers 7 to 12 carry 2 mark each.

CBSE Board Exam 2018 Class 10 Maths Paper Ques 7

Given that Root(2) is irrational, prove that (5 + 3Root(2)) is an irrational number.

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