Quantitative Aptitude Questions of CBT Mode Exam for Admission in PGDBF Diploma Course 2025-26 

The Quantitative Aptitude section in the  PGDBF 2025-26 Computer-Based Test (CBT) is designed to assess candidates’ numerical ability, problem-solving skills in mathematical concepts. The Syllabus Covers Data Interpretation, Number series, Simplification, Quadratic, Equations, Probability, Mensuration, Time & Work, Profit & Loss, Ration & Proportion, and More. Candidates must focus on speed, accuracy, and application of shortcuts to excel in this section. Regular Practice with mock tests, previous years papers, and formula based problem solving will enhance performance and efficiency in tackling questions. 

Also Read :- English Language of CBT Exam for IDBI PGDBF Admission 2025-26

Quantitative Aptitude Topics and Questions 

Data Sufficiency

Candidates are given a question with two statements, and they must determine whether the provided information is sufficient to answer the question.

Example:
Question: What is the value of ‘X’?

• 2X + 5 = 15
• X² = 25

Answer: Either statement alone is sufficient.

 Tips to Understand:

• Analyze each statement individually first.
• Do not assume extra information.

Simplification & Approximation

Tests basic arithmetic operations like BODMAS, percentages, and decimals to solve equations quickly.

Example:
Solve: (12 × 5) ÷ 4 + 6² – 10
Answer: 24

Tips to Understand:

• Follow BODMAS rule.
• Use shortcuts for square roots, cubes, and percentages.

Number Series

A sequence of numbers is given, and candidates must find the missing number or identify the pattern.

Example:
Find the missing number: 2, 6, 12, 20, ?
Answer: 30 (Pattern: +4, +6, +8, +10…)

Question Types:

• Arithmetic Pattern (+, -)
• Multiplication Pattern (×, ÷)
• Square/Cube Pattern

Quadratic Equation

Questions involve solving quadratic equations to find unknown values.

Example:
Solve for X: X² – 5X + 6 = 0
Answer: X = 2, 3 (Factorizing: (X-2)(X-3) = 0)

Tips:

• Use factorization method or quadratic formula.
• Compare two quadratic equations in “X and Y comparison” questions.

Mensuration

Tests knowledge of area, volume, perimeter, and surface area of geometric shapes.

Example:
Find the area of a circle with radius 7 cm.
Answer: πr² = 22/7 × 7 × 7 = 154 cm²

Important Formulas:

• Rectangle Area = l × b
• Circle Area = πr²
• Cylinder Volume = πr²h

Data Interpretation (DI)

Tables, graphs, or charts are given, and candidates must analyze the data to answer questions.

Example:
A table shows sales of a company from 2018 to 2022. Find the year with maximum growth.
Answer: Compare values and find % increase.

Types:

• Bar Graphs 📊
• Pie Charts 🔘
• Line Graphs 📈

Probability

Deals with the likelihood of an event occurring.

Example:
A bag contains 3 red and 2 blue balls. Find the probability of picking a red ball.
Answer: 3/5

Formula:
Probability = (Favorable Outcomes) / (Total Outcomes)

Ratio & Proportion

Tests the ability to compare quantities in ratio format.

Example:
The ratio of boys to girls in a class is 3:2. If there are 30 boys, how many girls are there?
Answer: 20 girls (Use cross multiplication: 3x = 30, so x = 10, then 2x = 20)

Concepts:

• Direct & Inverse Proportion
• Mixture Problems

Profit, Loss & Discount

Tests understanding of cost price (CP), selling price (SP), and percentage calculations.

Example:
A product is bought for ₹500 and sold at ₹600. Find the profit %.
Answer: (Profit/CP) × 100 = (100/500) × 100 = 20%

Common Formulas:

• Profit % = (Profit/CP) × 100
• Loss % = (Loss/CP) × 100

Simple & Compound Interest

Calculates interest earned over time.

Example:
Find SI for ₹5000 at 10% p.a. for 3 years.
Answer: (5000 × 10 × 3) / 100 = ₹1500

Formula:

• Simple Interest = (P × R × T) / 100
• Compound Interest = P(1 + R/100)ⁿ – P

Permutation & Combination

Tests arrangements and selections.

 Example:
How many ways can 3 students be selected from a group of 5?
Answer: 5C3 = 5! / (3!(5-3)!) = 10

Concepts:

• Permutation (Order Matters): nPr = n! / (n-r)!
• Combination (Order Doesn’t Matter): nCr = n! / (r!(n-r)!)

Time & Distance

Tests problems on speed, distance, and time calculations.

Example:
A car covers 120 km in 2 hours. Find its speed.
Answer: Speed = Distance / Time = 120/2 = 60 km/hr

Formula:

• Speed = Distance / Time
• Relative Speed: Opposite Direction = Sum of Speeds

Time & Work

Deals with efficiency-based problems.

Example:
A can complete a task in 10 days, B in 15 days. How long will they take together?
Answer: (1/10 + 1/15) = 1/6 → 6 days

Formula:

• Work = Rate × Time
• Efficiency Ratio Concept

Average

Tests calculation of mean value from given data.

Example:
Find the average of 10, 20, 30, 40, 50.
Answer: (10+20+30+40+50) / 5 = 30

Formula:
Average = (Sum of terms) / (Total number of terms)