Quadratic Equation Questions for RBI Assistant Exam, Get Free PDF

Quadratic Equation questions are one of the highest-scoring and most time-saving topics in the Quantitative Aptitude section of the Reserve Bank of India Assistant examination. In the RBI Assistant Exam, 4-5 questions are generally asked from this topic in the Prelims stage. These questions are direct and concept-based and require strong calculation speed along with clarity of fundamentals. If you are preparing seriously for the upcoming attempt, mastering quadratic equations can help you secure easy marks within a few minutes. In this article, we will discuss the exam pattern relevance, important concepts, types of questions, preparation strategy, and how to download the free PDF for practice.

Download Quadratic Equation Questions for RBI Assistant Exam 2026

In this section, we are providing Quadratic Equation Questions. Our experts curate these after analysing previous years’ patterns. Download Now and practice as many questions as you can.

What Are Quadratic Equation Questions?

A quadratic equation is an equation of the form:

ax² + bx + c = 0

Where:

• a ≠ 0
• a, b, and c are constants

In competitive exams, you are usually given two quadratic equations and asked to compare the values of x obtained from both equations.

Important Concepts to Revise

To solve questions efficiently, focus on the following concepts:

1. Factorisation Method

Most exam-level questions can be solved using direct factorisation. Practice splitting the middle term quickly.

2. Quadratic Formula

If factorisation is not possible, use:

x = (-b ± √(b² – 4ac)) / 2a

3. Nature of Roots

Understand the role of the discriminant (D = b² − 4ac):

• D > 0 → Real and distinct roots
• D = 0 → Equal roots
• D < 0 → No real roots

4. Comparison of Roots

After solving both equations, compare:

• x₁ with y₁
• x₂ with y₂

Then choose the correct relationship:

• x > y
• x < y
• x ≥ y
• x ≤ y
• The relationship cannot be determined

Types of Quadratic Equation Questions Asked

In the RBI Assistant exam, questions are generally of the following types:

Type 1: Simple Comparison

Both equations are easily factorable. These are scored and should be attempted first.

Type 2: Complex Factorisation

Requires slightly higher calculation speed but is still manageable within 40–50 seconds.

Type 3: Square-Based or Fraction-Based

Includes expressions with fractions or larger coefficients. Accuracy becomes important here.

Type 4: Conceptual Discriminant-Based

Instead of solving completely, sometimes comparing discriminants helps eliminate options quickly.

Example Question

Quantity I:
2x² − 7x + 3 = 0

Quantity II:
x² − 5x + 6 = 0

After solving:

Equation I roots → x = 3 and x = 1/2
Equation II roots → x = 3 and x = 2

Now compare the corresponding roots carefully to mark the correct option.

This type of question can be solved in less than 45 seconds with practice.

Strategy to Prepare Quadratic Equation for RBI Assistant

1. Strengthen Basics First

Revise factorisation techniques and shortcuts. Without conceptual clarity, speed cannot improve.

2. Practice Timed Sets

Solve 25–30 questions daily within a 15-minute time frame. This builds sectional confidence.

3. Avoid Long Calculations

If factorisation looks complicated, check the discriminant or eliminate options logically.

4. Maintain Accuracy

Since questions are easy, negative marking can hurt your score. Accuracy should be above 90%.

5. Combine With Mock Tests

Attempt full-length mock tests regularly. Analyse whether you are completing all quadratic questions within 3-4 minutes.

Common Mistakes to Avoid

• Sign errors while factoring
• Incorrect comparison of larger and smaller roots
• Ignoring negative values
• Spending too much time on one difficult equation

Remember, the RBI Assistant Prelims exam is speed-oriented. Time management matters more than solving every question perfectly.

Final Preparation Tips

• Attempt the quadratic equation questions first in the numerical ability section.
• Aim to solve all 4–5 questions correctly within 3 minutes.
• Revise formulas weekly.
• Track your accuracy in mock tests.

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