CBSE Class 10 Mathematics Chapter 4 Quadratic Equations Multiple Choice Questions with Answers. MCQ Questions Class 10 Mathematics Quadratic Equations with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Mathematics Quadratic Equations MCQs with Answers to know their preparation level.
Multiple Choice Questions - Set - 2
Question 1:
If the roots of px2 + qx + 2 = 0 are reciprocal of each other, then
(a) P = 0
(b) p = -2
(c) p = ±2
(d) p = 2
Correct Answer – (D)
Question 2 :
If one root of the equation x² + px + 12 = 0 is 4, while the equation x² + px + q = 0 has equal roots, the value of q is
(a) 49/4
(b) 4/49
(c) 4
(d) 49
Correct Answer – (A)
Question 3 :
The sum of the roots of the quadratic equation 3×2 – 9x + 5 = 0 is
(a) 3
(b) 6
(c) -3
(d) 2
Correct Answer – (C)
Question 4 :
If a and p are the roots of the equation 2x² – 3x – 6 = 0. The equation whose roots are 1α and 1β is
(a) 6x² – 3x + 2 = 0
(b) 6x² + 3x – 2 = 0
(c) 6x² – 3x – 2 = 0
(d) x² + 3x-2 = 0
Correct Answer – (B)
Question 5 :
Mohan and Sohan solve an equation. In solving Mohan commits a mistake in constant term and finds the roots 8 and 2. Sohan commits a mistake in the coefficient of x. The correct roots are
(a) 9,1
(b) -9,1
(c) 9, -1
(d) -9, -1
Correct Answer – (A)
Question 6 :
The roots of the quadratic equation 2x² – 2√2x + 1 = 0 are
(a) 1/√2, 1/√2
(b) √2, √2
(c) 1/√2, – 1/√2
(d) √2, 1/√2
Correct Answer – (C)
Question 7 :
a and p are the roots of 4x² + 3x + 7 = 0, then the value of 1/ɑ + 1/Ꞵ is
(a) -3/4
(b) -3/7
(c) 3/7
(d) 7/4
Correct Answer – (B)
Question 8 :
If the roots of ax2 + bx + c = 0 are in the ratio m : n, then
(a) mna² = (m + n) c²
(b) mnb² = (m + n) ac
(c) mn b² = (m + n)² ac
(d) mnb² = (m – n)² ac
Correct Answer – (C)
Question 9 :
If a, p are the roots of the equation (x – a) (x – b) + c = 0, then the roots of the equation (x – a) (x – P) = c are
(a) a, b
(b) a, c
(c) b, c
(d) none of these
Correct Answer – (A)
Question 10 :
The roots of the quadratic equation x+ 1/x = 3 where x ≠ 0 are
(a) 3 +√5, 3 -√5
(b) 2 +√5, 2 -√5
(c) [(3 +√5)/2], [(3 -√5)/2]
(d) [(3 +√3)/2], [(3 -√3)/2]
