Board Paper of Class 10 2018 Maths (SET 3)  Solutions
General Instructions :
(i) All questions are compulsory.
(ii) The question paper consists of 30 questions divided into four sections – A, B, C and D.
(iii) 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.
(iv) 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.
(v) Use of calculated is not permitted.
(i) All questions are compulsory.
(ii) The question paper consists of 30 questions divided into four sections – A, B, C and D.
(iii) 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.
(iv) 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.
(v) Use of calculated is not permitted.
 Question 1
What is the value of (cos^{2} 67° – sin^{2}^{ }23°)? VIEW SOLUTION
 Question 2
In an AP, if the common difference (d) = –4, and the seventh term (a_{7}) is 4, then find the first term. VIEW SOLUTION
 Question 3
Given ∆ABC ~ ∆PQR, if $\frac{\mathrm{AB}}{\mathrm{PQ}}=\frac{1}{3},$ then find $\frac{\mathrm{ar}\u2206\mathrm{ABC}}{\mathrm{ar}\u2206\mathrm{PQR}}.$ VIEW SOLUTION
 Question 4
What is the HCF of smallest prime number and the smallest composite number? VIEW SOLUTION
 Question 5
Find the distance of a point P(x, y) from the origin. VIEW SOLUTION
 Question 6
If x = 3 is one root of the quadratic equation x^{2} – 2kx – 6 = 0, then find the value of k. VIEW SOLUTION
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