CBSE Class 10 Mathematics Quadratic Equations MCQs

Refer to CBSE Class 10 Mathematics Quadratic Equations MCQs provided below available for download in Pdf. The MCQ Questions for Class 10 Mathematics with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 4 Quadratic Equations are an important part of exams for Class 10 Mathematics and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 10 Mathematics and also download more latest study material for all subjects

MCQ for Class 10 Mathematics Chapter 4 Quadratic Equations

Class 10 Mathematics students should refer to the following multiple-choice questions with answers for Chapter 4 Quadratic Equations in Class 10.

Chapter 4 Quadratic Equations MCQ Questions Class 10 Mathematics with Answers

Question : The sum of the reciprocals of the roots of the equation x2 + px + q = 0 is
(a) p/q. 
(b) -p/q. 
(c) q/p. 
(d) -q/p.
Answer: B
 
Question : The roots of the equation 3x2 – 4x + 3 = 0 are –
(a) real and unequal 
(b) real and equal 
(c) imaginary 
(d) none of these
Answer: C
 
Question : For the quadratic equation x2 – 2x + 1 = 0, the value of x + 1/x is –
(a) –1 
(b) 1 
(c) 2 
(d) –2
Answer: C
 
Question : If one root of the equation px2 –14x + 8 = 0 is six times the other, then p is equal to -
(a) 2 
(b) 3 
(c) 1 
(d) None of these
Answer: B
 
Question : The roots of x2 –2x – (r2 – 1) = 0 are :
(a)1 – r, r – 1 
(b) 1 –r, r +1 
(c) 1, r 
(d) 1 – r, r
Answer: B
 
Question : Which of the following equations has the sum of its roots as 3?
(a) x2 + 3x –5 = 0 
(b) – x2 + 3x + 3 = 0 
(c) 2x2 – 3/2x –1 = 0 
(d) 3x2 –3x –3 = 0
Answer: B
 
Question : If the sum and product of the roots of the quadratic equation ax2 –5x + c = 0 are each equal to 10, then the values of a and c are
(a) 1/2 and –5 
(b) 1/2 and 5 
(c) 5 and 3/2
(d) 3/2 and 5
Answer: B
 
Question : Which of the following equations has two distinct real roots?
(a) x2 + 3x + 2 2 = 0 
(b) x2 + x – 5 = 0
(c) 2x2 –3 2 x + 9/4 = 0 
(d) 5x2 –3x + 1 = 0
Answer: B
 
Question : Which constant must be added and subtracted to solve the quadratic equation 9x2 +3/4x - 2 = 0 by the method of completing the square ?
(a) 1/8 
(b) 1/64 
(c) 1/4 
(d) 9/64
Answer: B
 
Question : The quadratic equation whose one of the roots is (3 – 5 ), is
(a) x2 – 6x + 4 = 0 
(b) 3x2 + 5x + 2 = 0 
(c) x2 – 2x + 7 = 0 
(d) 2x2 + 3x + 5 = 0
Answer: A

Question. The roots of the equation x2 + 7x + 10 =0 are
(a) 2 and 5
(b) –2 and 5
(c) –2 and –5
(d) 2 and –5

Question. If α,β are the roots of the quadratic equation x2 + x + 1 = 0, then 1/α + 1/β 
(a) 0
(b) 1
(c) –1
(d) none of these

Question. If the equation x2 + 4x + k = 0 has real and distinct roots then
(a) k < 4
(b) k > 4
(c) k ≤ 4
(d) k ≥ 4

Question. If the equation x2 – ax + 1 = 0 has two distinct roots then
(a) | a | = 2
(b) | a | < 2
(c) | a | > 2
(d) none of these

Question. If the equation 9x2 + 6kx + 4 = 0 has equal roots then the roots are both equal to
(a) ± 2/3
(b) ± 3/2
(c) 0
(d) ± 3

Question. If the equation (a2 + b2)x2 – 2b(a + c)x + b2 + c2 = 0 has equal roots then 
(a) 2b = a + c
(b) b2 = ac
(c) b = 2ac/a+c
(d) b = ac

Question. If the equation x2 – bx + 1 = 0 has two distinct roots then
(a) –3 < b < 3
(b) –2 < b < 2
(c) b > 2
(d) b < –2

Question. If x = 1 is a common root of the equations ax2 + ax + 3 = 0 and x2 + x + b = 0 then ab =
(a) 6
(b) 3
(c) –3
(d) 7/2

Question. If p and q are the roots of the equation x2 – px + q = 0, then
(a) p = 1, q = –2
(b) p = –2, q = 0
(c) b = 0, q = 1
(d) p = –2, q = 1

Question. If the equation ax2 + bx + c = 0 has equal roots then c =
(a) -b/2a
(b) b/2a
(c) -b2/4a
(d) b24a

CBSE Class 10 Mathematics Quadratic Equations MCQs Set B

Question. If a and b can take values 1, 2, 3, 4. Then the number of the equations of the form ax2+ bx + c = 0 having real roots is
(a) 6
(b) 7
(c) 10
(d) 12

Question. The number of quadratic equations having real roots and which do not change by squaring their roots is
(a) 4
(b) 3
(c) 2
(d) 1

Question. If one of the roots of the quadratic equation (k2 + 4)x2 + 13x + 4k is reciprocal of the other then k =
(a) 2
(b) 1
(c) –1
(d) – 2

CBSE Class 10 Mathematics Quadratic Equations MCQs Set B-

Question. If α,β  are the roots of the quadratic equation x2 – p(x + 1) – c = 0, then (α+1 )(β+1) =
(a) c – 1
(b) 1 – c
(c) c
(d) 1 + c

Question. Find the values of k for which the quadratic equation 2x2 + kx + 3 = 0 has real equal roots.
(a) ±2 √6
(b) 2√ 6
(c) 0
(d) ±2

Question. Find the values of k for which the quadratic equation kx(x – 3) + 9 = 0 has real equal roots.
(a) k = 0 or k = 4
(b) k = 1 or k = 4
(c) k = –3 or k = 3
(d) k = –4 or k = 4

Question. Find the values of k for which the quadratic equation 4x2 – 3kx + 1 = 0 has real and equal roots.
(a) ±4/3
(b) ±2/3
(c) ±2 
(d) none of these

Question. Find the values of k for which the quadratic equation (k – 12)x2 + 2(k – 12)x + 2 = 0 has real and equal roots.
(a) k = 0 or k = 14
(b) k = 12 or k = 24
(c) k = 14 or k = 12
(d) k = 1 or k = 12

Question. Find the values of k for which the quadratic equation k2x2 – 2(k – 1)x + 4 = 0 has real and equal roots.
(a) k = 0 or k = 1/3
(b) k = 1 or k = 1/3
(c) k = –1 or k = 1/3
(d) k = –3 or k = 1/3

Question. If –4 is a root of the equation x2 + px – 4 = 0 and the equation x2 + px + q = 0 has equal roots, find the value of p and q.
(a) p =3, q = 9
(b) p =9, q = 3
(c) p = 3, q = 4/9
(d) p = 3, q = 9/4

Question. If the roots of the equation (a – b)x2 + (b – c)x + (c – a) = 0 are equal, then b + c =
(a) 2a
(b) 2bc
(c) 2c
(d) none of these

Question. Find the positive value of k for which the equations x2 + kx + 64 = 0 and x2 – 8x + k = 0 will have real roots.
(a) 8
(b) 16
(c) –8
(d) –16

CBSE Class 10 Mathematics Quadratic Equations MCQs Set D

Question. The sum of a number and its reciprocal is 10/3. Find the number.
(a) 3
(b) 1/3
(c) both (a) and (c)
(d) none of these

Question. Divide 12 into two parts such that the sum of their squares is 74.
(a) 7 and 5
(b) 8 and 4
(c) 10 and 2
(d) none of these

Question. The sum of the squares of two consecutive natural numbers is 421. Find the numbers.
(a) 14 and 5
(b) 14 and 15
(c) 10 and 5
(d) none of these

Question. The sum of two numbers is 15 and the sum of their reciprocals is 3/10. Find the numbers.
(a) 14 and 5
(b) 14 and 15
(c) 10 and 5
(d) none of these

Question. Divide 12 into two parts such that their product is 32.
(a) 7 and 5
(b) 8 and 4
(c) 10 and 2
(d) none of these

Question. The value of k for which equation 9x2 + 8xk + 8 = 0 has equal roots is:
(a) only 3
(b) only –3
(c) ±3
(d) 9

Question. Which of the following is not a quadratic equation?
(a) x-3/x = 4
(b) 3x-5/x = x2
(c) x = 3/2
(d) x = –3

Question. Which of the following is a solution of the quadratic equation 2x2 + x – 6 = 0?
(a) x = 2
(b) x = –12
(c) x = 3/2
(d) x = –3

Question. The value of k for which x = –2 is a root of the quadratic equation kx2 + x – 6 = 0
(a) –1
(b) –2
(c) 2
(d) -3/2

Question. The value of p so that the quadratics equation x2 + 5px + 16 = 0 has no real root, is
(a) p>8
(b) p<5
(c) -8/5<x< 8/5
(d) -8/5 ≤x< = 0

Question. If px2 + 3 w + q = 0 has two roots x = –1 and x = –2, the value of q – p is
(a) –1
(b) –2
(c) 1
(d) 2

Question. The common root of the quadratic equation x2 – 3x + 2 = 0 and 2x2 – 5x + 2 = 0 is:
(a) x = 2
(b) x = –2
(c) x = 1/2
(d) x = 1

Question. If x2 – 5x + 1 = 0, the value of (x+1/x) is:
(a) –5
(b) –2
(c) 5
(d) 3

Question. If a – 3 = 10/a , the value of a are
(a) –5, 2
(b) 5, –2
(c) 5, 2
(d) 5, 0

Question. If the roots of the quadratic equation kx2 + (a + b)x + ab = 0 are (–1, –b), the value of k is:
(a) –1
(b) –2
(c) 1
(d) 2

Question. The quadratic equation with real coefficient whose one root is 2+ √ 3 is:
(a) x2 – 2x + 1 = 0
(b) x2 – 4x + 1 = 0
(c) x2 – 4x + 3 = 0
(d) x2 – 4x + 4 = 0

Question. If the difference of roots of the quadratic equation x2 + kx + 12 = 0 is 1, the positive value of k is:
(a) –7
(b) 7
(c) 4
(d) 8

Chapter 03 Pair of Linear Equations in Two Variables
CBSE Class 10 Mathematics Pairs of Linear Equations in Two Variables MCQs
Chapter 08 Introduction to Trigonometry
CBSE Class 10 Mathematics Introduction to Trigonometry MCQs
Chapter 09 Some Applications of Trigonometry
CBSE Class 10 Mathematics Application of Trigonometry MCQs
z More MCQs for Class 10 Mathematics
CBSE Class 10 Mathematics MCQs

MCQs for Chapter 4 Quadratic Equations Mathematics Class 10

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