July 8, 2025
Overview: Struggling in Quadratic Equation CAT Questions? Fret not! We'll break down the basics in minutes and then equip you with valuable techniques like formula methods and factorization. We'll also share CAT-specific strategies to maximize your score.
In this blog, we will explore Quadratic Equation CAT Questions 2025 in depth including key concepts, types of problems asked, solving strategies, and tips to maximize your performance in this topic.
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Read more: CAT Maths Syllabus 2025
Quadratic equations form an integral part of the Quantitative Ability section of the CAT exam. This topic not only tests your conceptual clarity but also your speed and problem-solving abilities under time constraints. we will explore the relevance of quadratic equations for CAT 2025, go through the fundamentals, provide useful tips and shortcuts, and finally, practice with sample CAT-level questions to strengthen your preparation.
To solve a CAT quadratic equation questions, two common methods are utilized:
1. Standard Formula:
Using the standard formula, any quadratic equation of the form ax^2 + bx + c = 0 can be solved quickly and efficiently using the following formula:
x = (-b ± √(b^2 - 4ac)) / (2a)
Applying this formula means two solutions are obtained: one using the plus sign and the other using the minus sign. This method can be applied to any type of quadratic equation, whether or not it is factorable.
2. Factoring Method:
This method involves factoring the quadratic expression to find its roots. It is a valuable technique for solving quadratic equations, especially when the equation is factorable.
Example: Consider the equation x² – 2x—6 = 0. Using the standard formula, we can solve this equation by finding the values of a, b, and c and then applying the formula to obtain the two solutions.
Original:
x = -(-2) ± √(-2)^2 - 4(1)(-6) / 2(1)
x = 2 ±√4 + 24/2
x = 2 ± √28/2
x = 2 ± 2√7/2
Check: CAT Exam Pattern section wise
Q1. If α≠β but α2=5α−3 and β2=5β−3 then the equation whose roots are α/β and β/α.
Answer: 3x2−19x+3=0
Q2. The number of real solutions of the equation x2−3|x|+2=0 is
Answer: 4
Q3. x2 - 9x + |k| = 0 has real roots. How many integer values can 'k' take?
Answer: 41
Q4. Equation x² + 5x - 7 = 0 has roots a and b. The equation 2x² + px + q = 0 has roots a + 1 and b + 1. Find p + q.
Answer: -16
Read More: Important Geometry Questions for CAT 2025
Q5. Two numbers have an arithmetic mean of 9 and a geometric mean of 4. Then, these numbers are the roots of the quadratic equation x^2 + 18.
Answer: x2−18x+16=0
Q6. The given function is f(x) = x^2 + (2p + 1)x + p^2 - 1, where x is a real number. For what values of 'p' does the function equal 0 when p > 0?
Answer: p ≥ −5/4
Q7. Suppose k is the largest integer such that the equation (x−1)2+2kx+11=0 has no real roots. Given that y is a positive real number, find the least possible value of (k/4y)+9y.
Answer: 6
Practise: CAT Arithmetic Questions 2025
Q8. The number of integer solutions of the equation (x2−10)(x2−3x−10)=1 is
Answer: 4
Q9. Given that both roots of the quadratic equation x2−2kx+k2+k−5=0 are less than 5, find the range of k.
Answer: (−∞,4)
Explore: CAT 2025 Syllabus for MBA
Q10. Between the roots of the equation x^2+ax+1=0 is less than √5, the set of possible values of a is:
Answer: (−3,3)
Q11. If 3x+2|y|+y=7 and x+|x|+3y=1, then x+2y𝑥+2𝑦 is
Answer: 0
Explore: CAT Geometry Syllabus
Q12. How many number of solutions the equation |x|(6x^2 + 1) = 5x^2 have?
Answer: 5
Q13. Two distinct roots of the equation 2x^2-6x+k=0 are α and β. Also (α+β) and αβ are the distinct roots of the equation x^2+px+p=0. Then, find the value of 8(k−p) is
Answer: 6
Learn more: CAT Exam Day Guidelines
Here are some tips for mastering quadratic equations to prepare for the CAT exam:
1. Master the Basics:
2. Sharpen Your Problem-Solving Techniques:
3. Develop a Strategic Approach:
4. Practice Makes Perfect:
5. Additional Tips:
By obeying these tips and practising consistently, you can upskill and build the confidence to effectively tackle quadratic equation questions in the CAT exam.
Quadratic equations differ from linear equations because quadratic equations contain an x^2 term, while linear equations do not. A term is considered quadratic when it has a degree of 2. Now let's delve deeper into the underlying concepts.
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Quadratic Equation CAT Questions are a vital part of the Algebra section in the CAT Quantitative Aptitude paper. These questions test not only your mathematical understanding but also your logical thinking and speed. Here's why they hold such importance in your CAT preparation:
Frequent in CAT Papers: Quadratic Equation questions are regularly seen in the CAT exam. They may be asked directly or integrated into more complex algebra-based problems.
Strong Conceptual Foundation: Understanding quadratic equations builds a strong base for related algebraic topics such as:
High Accuracy Potential: These questions often follow predictable formats. If you know the standard methods like:
Time-Saving Section: With practice, most quadratic problems can be solved in under a minute. This makes them great for saving time during the exam and focusing more on time-consuming questions later.
Application-Oriented Questions: In CAT, quadratic equations are not just about numbers—they often appear in word problems or require logical interpretation, such as identifying valid roots, checking value ranges, or linking equations to real-life contexts.
Read more: Complete CAT DILR Syllabus
You'll gain a valuable edge in the Quadratic Equation CAT questions section by mastering cat questions on quadratic equations. This blog equips you with the knowledge and tools to solve these problems efficiently and accurately. Remember, practice is key! Utilize the concepts and techniques discussed here by solving sample cat questions on quadratic equations and past CAT papers. With dedication in the CAT preparation and a solid understanding of quadratics, you'll be well on your way to conquering the CAT!
Also Check: CAT Registration Dates 205
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