Board Paper of Class 10 2009 Maths (SET 1)  Solutions
1. All questions are compulsory.
2. The question paper consists of 30 questions divided into four sections – A, B, C and D. Section A comprises of ten questions of 1 mark each, Section B comprises of five questions of 2marks each, Section C comprises of ten questions of 3 marks each and Section D comprises of five questions of 6marks each.
3. All questions in Section A are to be answered in one word, one sentence or as per the exact requirement of the question.
There is no overall choice. However, an internal choice has been provided in one question of 2 marks each, three questions of 3 marks each and two questions of 6 marks each. You have to attempt only one of the alternatives in all such questions.
4. In question on construction, the drawing should be neat and as per the given measurements.
5. Use of calculators is not permitted.
 Question 1
Find the [HCF × LCM] for the numbers 100 and 190.
VIEW SOLUTION
 Question 2
If 1 is a zero of the polynomial p(x) = ax^{2} − 3(a − 1) x − 1, then find the value of a.
VIEW SOLUTION
 Question 3
In ΔLMN, ∠L = 50° and ∠N = 60°. If ΔLMN ∼ ΔPQR, then find ∠Q.
VIEW SOLUTION
 Question 4
If sec^{2}θ (1 + sin θ) (1 − sin θ) = k, then find the value of k.
VIEW SOLUTION
 Question 5
If the diameter of a semicircular protractor is 14 cm, then find its perimeter.
VIEW SOLUTION
 Question 6
Find the number of solutions of the following pair of linear equations:
x + 2y − 8 = 0
2x + 4y = 16
VIEW SOLUTION
 Question 7
Find the discriminant of the quadratic equation
VIEW SOLUTION
 Question 8
If, a, and 2 are three consecutive terms of an A.P., then find the value of a.
VIEW SOLUTION
 Question 9
In figure 1, ΔABC is circumscribing a circle. Find the length of BC.
VIEW SOLUTION
 Question 10
Two coins are tossed simultaneously. Find the probability of getting exactly one head.
VIEW SOLUTION

Board Paper of Class 10 2020 Maths (Standard) Delhi(Set 1)  Solutions

Board Paper of Class 10 2020 Maths (Standard) Delhi(Set 2)  Solutions

Board Paper of Class 10 2020 Maths (Standard) Delhi(Set 3)  Solutions

Board Paper of Class 10 2020 Maths (Basic) Delhi(Set 1)  Solutions

Board Paper of Class 10 2020 Maths (Basic) Delhi(Set 2)  Solutions

Board Paper of Class 10 2020 Maths (Basic) Delhi(Set 3)  Solutions

Board Paper of Class 10 2019 Maths All India(Set 2)  Solutions

Board Paper of Class 10 2019 Maths Delhi(Set 1)  Solutions

Board Paper of Class 10 2019 Maths Delhi(Set 2)  Solutions

Board Paper of Class 10 2019 Maths Delhi(Set 3)  Solutions

Board Paper of Class 10 2019 Maths Abroad(Set 2)  Solutions

Board Paper of Class 10 2019 Maths Abroad(Set 3)  Solutions

Board Paper of Class 10 2018 Maths (SET 1)  Solutions

Board Paper of Class 10 2018 Maths (SET 2)  Solutions

Board Paper of Class 10 2018 Maths (SET 3)  Solutions

Board Paper of Class 10 2017 Maths (SET 1)  Solutions

Board Paper of Class 10 2017 Maths (SET 2)  Solutions

Board Paper of Class 10 2017 Maths (SET 3)  Solutions

Board Paper of Class 10 2017 Maths (SET 1)  Solutions

Board Paper of Class 10 2017 Maths (SET 2)  Solutions

Board Paper of Class 10 2017 Maths (SET 3)  Solutions

Board Paper of Class 10 2017 Maths (SET 3)  Solutions

Board Paper of Class 10 2016 Maths (SET 1)  Solutions

Board Paper of Class 10 2016 Maths (SET 2)  Solutions

Board Paper of Class 10 2016 Maths (SET 3)  Solutions

Board Paper of Class 10 2016 Maths (SET 1)  Solutions

Board Paper of Class 10 2016 Maths (SET 1)  Solutions

Board Paper of Class 10 2015 Maths (SET 1)  Solutions

Board Paper of Class 10 2015 Maths (SET 2)  Solutions

Board Paper of Class 10 2015 Maths (SET 3)  Solutions

Board Paper of Class 10 2015 Maths (SET 1)  Solutions

Board Paper of Class 10 2015 Maths (SET 1)  Solutions

Board Paper of Class 10 2014 Maths (SET 1)  Solutions

Board Paper of Class 10 2014 Maths (SET 2)  Solutions

Board Paper of Class 10 2014 Maths (SET 3)  Solutions

Board Paper of Class 10 2014 Maths (SET 2)  Solutions

Board Paper of Class 10 2014 Maths (SET 3)  Solutions

Board Paper of Class 10 2013 Maths Delhi(SET 1)  Solutions

Board Paper of Class 10 2013 Maths (SET 2)  Solutions

Board Paper of Class 10 2013 Maths (SET 3)  Solutions

Board Paper of Class 10 2012 Maths (SET 1)  Solutions

Board Paper of Class 10 2012 Maths (SET 3)  Solutions

Board Paper of Class 10 2012 Maths (SET 1)  Solutions

Board Paper of Class 10 2011 Maths (SET 2)  Solutions

Board Paper of Class 10 2011 Maths (SET 3)  Solutions

Board Paper of Class 10 2011 Maths (SET 1)  Solutions

Board Paper of Class 10 2011 Maths (SET 2)  Solutions

Board Paper of Class 10 2010 Maths (SET 3)  Solutions

Board Paper of Class 10 2010 Maths (SET 1)  Solutions

Board Paper of Class 10 2009 Maths (SET 1)  Solutions

Board Paper of Class 10 2009 Maths (SET 2)  Solutions

Board Paper of Class 10 2009 Maths (SET 3)  Solutions

Board Paper of Class 10 2009 Maths (SET 2)  Solutions

Board Paper of Class 10 2009 Maths (SET 3)  Solutions

Board Paper of Class 10 2009 Maths (SET 1)  Solutions

Board Paper of Class 10 2008 Maths (SET 1)  Solutions

Board Paper of Class 10 2008 Maths (SET 1)  Solutions

Board Paper of Class 10 2008 Maths (SET 1)  Solutions

Board Paper of Class 10 2007 Maths (SET 1)  Solutions

Board Paper of Class 10 2007 Maths (SET 1)  Solutions

Board Paper of Class 10 2007 Maths (SET 1)  Solutions