HomeTestsSearchRankProfile
mediumMCQCompetitive Exam2026Quantitative Aptitude
1 mark

Ram and Shyam solve a quadratic equation. Ram makes a mistake in the constant term and finds the roots as . Shyam makes a mistake in the co-efficient of and gets the roots as . The correct roots are:

  1. A
    1, 3
  2. B
    -1, 3
  3. C
    -1, -3
  4. D
    1, -1

Solution & Step-by-step Explanation

Let the standard quadratic equation be written as:


1. Ram's calculation:

* Ram makes a mistake in the constant term, which means his coefficient of (and thus his Sum of roots) is correct.



2. Shyam's calculation:

* Shyam makes a mistake in the coefficient of , which means his constant term (and thus his Product of roots) is correct.



3. Forming the correct equation:
Substituting the correct sum and product back into the standard quadratic form:





Factoring the quadratic equation:







Thus, the correct roots are and .

Practice this question

Try it yourself before checking the explanation above.

Ram and Shyam solve a quadratic equation. Ram makes a mistake in the constant term and finds the roots as . Shyam makes a mistake in the co-efficient of and gets the roots as . The correct roots are:
A
1, 3
B
-1, 3
C
-1, -3
D
1, -1

Share This Question

Related Questions

Ready for a Full Test?

Practice with timed mock tests and track your performance across Quantitative Aptitude.

Discussion