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Advance Quadratic equations – 10 Questions Practice Set 1 [1-10] – Must Practice Set for CAT, XAT & Other MBA Exams

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Advance Quadratic equations – 10 Questions Practice Set 1 [1-10] – Must Practice Set for CAT, XAT & Other MBA Exams

Algebra Practice – Full Set

10 Advance Quadratic Equations MCQs – XAT & CAT Level Practice

Compiled by Maths By Amiya. Click below to reveal answers and video walkthroughs.


1) The value of \(a\) for which the sum of the squares of the roots of the equation \(x^2 - (a - 2)x - a - 1 = 0\) assumes the least value is:

  • (a) 1
  • (b) 0
  • (c) 3
  • (d) 2
  • (e) None of These
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Answer: 1

🎥 Video Solution: Coming soon

2) If the roots of the equation \(x^2 - bx + c = 0\) are two consecutive integers, then \(b^2 - 4c\) equals:

  • (a) -2
  • (b) 3
  • (c) 2
  • (d) 1
  • (e) None of These
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Answer: 1

🎥 Video Solution: Coming soon

3) If both the roots of the quadratic equation \(x^2 - 2kx + k^2 + k - 5 = 0\) are less than 5, then \(k\) lies in the interval:

  • (a) (5, 6]
  • (b) (6, ∞)
  • (c) \((-\infty, 4)\)
  • (d) [4, 5]
  • (e) None of These
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Answer: \((-\infty, 4)\)

🎥 Video Solution: Coming soon

4) Let two numbers have arithmetic mean 9 and geometric mean 4. Then these numbers are the roots of the quadratic equation:

  • (a) \(x^2 + 18x + 16 = 0\)
  • (b) \(x^2 - 18x + 16 = 0\)
  • (c) \(x^2 + 18x - 16 = 0\)
  • (d) \(x^2 - 18x - 16 = 0\)
  • (e) None of These
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Answer: \(x^2 - 18x + 16 = 0\)

🎥 Video Solution: Coming soon

5) If \((1 - p)\) is a root of the quadratic equation \(x^2 + px + (1 - p) = 0\), then the roots are:

  • (a) 0, 1
  • (b) -1, 1
  • (c) 0, -1
  • (d) -1, 2
  • (e) None of These
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Answer: 0, -1

🎥 Video Solution: Coming soon

6) If one root of the equation \(x^2 + px + 12 = 0\) is 4, while the equation \(x^2 + px + q = 0\) has equal roots, then the value of \(q\) is:

  • (a) \(\frac{49}{4}\)
  • (b) 12
  • (c) 3
  • (d) 4
  • (e) None of These
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Answer: \(\frac{49}{4}\)

🎥 Video Solution: Coming soon

7) The number of real solutions of the equation \(x^2 - 3|x| + 2 = 0\) is:

  • (a) 2
  • (b) 4
  • (c) 1
  • (d) 3
  • (e) None of These
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Answer: 4

🎥 Video Solution: Coming soon

8) The value of \(a\) for which one root of the quadratic equation \((a^2 - 5a + 3)x^2 + (3a - 1)x + 2 = 0\) is twice as large as the other is:

  • (a) \(\frac{2}{3}\)
  • (b) \(-\frac{2}{3}\)
  • (c) \(\frac{1}{3}\)
  • (d) \(-\frac{1}{3}\)
  • (e) None of These
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Answer: \(\frac{2}{3}\)

🎥 Video Solution: Coming soon

9) If roots of the equation \(x^2 - 5x + 16 = 0\) are \(\alpha, \beta\) and the roots of the equation \(x^2 + px + q = 0\) are \(\alpha^2 + \beta^2\) and \(\frac{\alpha\beta}{2}\), then:

  • (a) \(p = 1,\ q = -56\)
  • (b) \(p = -1,\ q = -56\)
  • (c) \(p = 1,\ q = 56\)
  • (d) \(p = -1,\ q = 56\)
  • (e) None of These
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Answer: \(p = 1,\ q = 56\)

🎥 Video Solution: Coming soon

10) If \(\alpha\) and \(\beta\) are the roots of the equation \((x - a)(x - b) = c\), where \(c \ne 0\), then the roots of the equation \((x - \alpha)(x - \beta) = c\) are:

  • (a) \(a,\ c\)
  • (b) \(b,\ c\)
  • (c) \(a,\ b\)
  • (d) \(a + b,\ b + c\)
  • (e) None of These
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Answer: \(a,\ b\)

🎥 Video Solution: Coming soon


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