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RRB NTPC Tables

Study Material — 9 PYQs (2018–2018) · Concept Notes · Shortcuts

RRB NTPC Tables is a frequently tested subtopic — 9 previous year questions from 2018–2018 papers are included below with concept notes, key rules and shortcut tricks.

9 PYQs
2018–2018
21 Practice
MCQs
10 Key Points
to remember
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Previous Year Questions

RRB NTPC Tables — Past Exam Questions

9 questions from actual RRB NTPC papers · all shown free · click option to reveal solution

Exam Q 12018Previous Year Pattern

What is the growth rate of total sales from Q1 to Q4?

Exam Q 22018Previous Year Pattern

What percentage of Q3 total sales was contributed by Accessories?

Exam Q 32018Previous Year Pattern

What is the average quarterly sales for Tablets across all four quarters?

Exam Q 42018Previous Year Pattern

What is the ratio of Smartphones sales in Q4 to Laptops sales in Q4?

Exam Q 52018Previous Year Pattern

If the combined production of all factories in Q3 was 1250 tonnes, what was Epsilon's production in Q3?

Exam Q 62018Previous Year Pattern

Which factory showed the highest total production across all four quarters?

Exam Q 72018Previous Year Pattern

By what percentage did Alpha's production increase from Q1 to Q4?

Exam Q 82018Previous Year Pattern

What is the ratio of Delta's Q4 production to Gamma's Q4 production?

Exam Q 92018Previous Year Pattern

What is the average production of Beta factory across all four quarters?

Concept Notes

Tables— Rules & Concept

Core ConceptRead this first — the foundation of the topic

Tables in Data Interpretation are structured arrangements of data in rows and columns. They present numerical information about various parameters like sales, production, population, etc. In SSC CGL, table-based DI questions are guaranteed to appear in every paper, usually 3-5 questions per table. Key Rules for Table Analysis:

1. Always read the title and column headers first 2. Identify what each row and column represents

3. Check for units mentioned (lakhs, crores, percentage, etc.) 4. Look for missing data or symbols like '-' or '*'

5. Understand the time period covered Common Question Types:

• Finding totals, averages, and percentages • Comparison between years/categories

• Growth rate calculations • Ratio and proportion problems

• Maximum/minimum value identification

Formula BlockMemorise — at least one formula appears in every paper
Percentage increase = [(New Value - Old Value) / Old Value] × 100
Average = Sum of all values / Number of values
Ratio = First value : Second value (in simplest form)

Shortcut 1 - Quick Percentage Calculation:

To find X% of Y, use: X × Y ÷ 100

For 25%: Divide by 4

For 20%: Divide by 5

For 12.5%: Divide by 8

Shortcut 2 - Average Estimation:

When finding average of 5-6 numbers, pick a round number close to all values. Calculate differences and adjust.

Shortcut 3 - Ratio Comparison:

To compare ratios quickly, cross-multiply. For a/b vs c/d, compare a×d with b×c.
Worked ExampleSolve this step-by-step before moving on
1
Step 1

Find total sales = 120 + 150 + 180 + 90 + 160 = 700 lakhs

2
Step 2

Company C's sales = 180 lakhs

3
Step 3

Percentage = (180/700) × 100 = 18/7 × 10 = 25.71% Answer: Approximately 25.7% Worked Example 2: Production table shows Year 2019: 240 units, Year 2020: 180 units Question: Find percentage decrease from 2019 to 2020.

1
Step 1

Decrease = 240 - 180 = 60 units

2
Step 2

Percentage decrease = (60/240) × 100

3
Step 3

= (1/4) × 100 = 25% Answer: 25% decrease

Exam PatternsWhat examiners ask — read before attempting PYQs
Recognition

• Tables usually have 4-6 rows and 4-7 columns • Data often represents years (2015-2020) or categories • Questions test calculation speed and accuracy • Answer choices are often close, requiring precise calculation • Time allocation: Maximum 2-3 minutes per question Most Common Trap - The #1 Mistake: Students often miss the UNITS mentioned in table headers. A table showing '245' with header 'Sales (in crores)' means 245 crores, not 245 rupees. This unit confusion leads to wrong final answers even with correct calculations. Always circle the units before starting calculations

Time-Saving Techniques

• Use approximation for complex calculations when answer choices are far apart • Eliminate obviously wrong options first • For percentage questions, convert to fractions when possible • Practice mental math for common calculations (squares, percentages, ratios) Success Strategy: Table DI is purely calculation-based. Focus on accuracy over speed initially. Build calculation speed through regular practice. Master basic arithmetic operations and percentage calculations.

These questions are scoring if approached systematically.

Key Points to Remember

  • Always read table title and column headers before attempting questions
  • Check units carefully - crores, lakhs, thousands, or absolute numbers
  • Percentage increase formula: [(New - Old)/Old] × 100
  • Quick percentage trick: 25% = ÷4, 20% = ÷5, 12.5% = ÷8
  • Average = Sum of all values ÷ Number of values
  • Ratio comparison shortcut: For a/b vs c/d, compare a×d with b×c
  • Tables typically have 4-6 rows and 4-7 columns in SSC CGL
  • Allocate maximum 2-3 minutes per table question
  • Practice approximation when answer choices are far apart
  • Focus on calculation accuracy - most errors occur in basic arithmetic

Exam-Specific Tips

  • SSC CGL papers contain 3-5 questions from each table in DI section
  • Table DI questions carry 2 marks each with negative marking of 0.5
  • Common table formats show data for 5-year periods (2016-2020 pattern)
  • Units frequently used: lakhs, crores, thousands, percentage, absolute numbers
  • Time period data most common: years, quarters, months in chronological order
  • Maximum 6-7 companies/states/products typically shown in one table
  • Percentage calculations appear in 60-70% of table-based questions
  • Growth rate and comparison questions form 40% of table DI questions
Practice MCQs

Tables — Practice Questions

21graded MCQs · easy to hard · full solution & trap analysis · showing 20 of 21

All MCQs →
Practice 1easy

Which product category had the highest total sales across Q1 2024?

Practice 2easy

What is the average monthly sales of the Sports category?

Practice 3easy

By what percentage did Electronics sales increase from January to March?

Practice 4easy

What is the average production of Beta across all four quarters?

Practice 5easy

By what percentage did Gamma's production increase from Q1 to Q3?

Practice 6easy

Which company showed the maximum growth from Q1 to Q4?

Practice 7easy

What is the total production of mobile phones by all companies in Q2?

Practice 8easy

What is the ratio of Home & Kitchen sales in February to Books sales in March?

Practice 9easy

What is the difference between the total production of Alpha and Delta across all four quarters?

Practice 10easy

What is the total sales of the Clothing category across all three months?

Practice 11medium

What is the percentage increase in Smartphone sales from Q1 to Q4?

Practice 12medium

What is the difference between total annual sales of Software and total annual sales of Accessories?

Practice 13medium

Which product category shows the highest average sales across all four quarters?

Practice 14medium

What is the ratio of Laptop sales in Q2 to Accessories sales in Q2?

Practice 15medium

What is the average quarterly sales of Tablets across all four quarters?

Practice 16medium

By what percentage did Laptops sales increase from Q3 to Q4?

Practice 17medium

What is the ratio of total Q2 sales to total Q3 sales across all product categories?

Practice 18medium

What is the percentage increase in Smartphones sales from Q1 to Q4?

Practice 19hard

What is the ratio of Plant C's Q4 production to Plant E's Q4 production?

Practice 20hard

Which plant showed the highest absolute profit (in thousand units) in Q3, and what was that profit?

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60-Second Revision — Tables

  • Remember: Check units in table headers before calculating
  • Formula: Percentage change = [(New-Old)/Old] × 100
  • Shortcut: 25%=÷4, 20%=÷5, 50%=÷2 for quick calculations
  • Trap: Don't confuse absolute numbers with percentages in mixed tables
  • Strategy: Eliminate wrong options first, then calculate precisely
  • Time: Maximum 2-3 minutes per question, move on if stuck
  • Accuracy: Double-check final calculation - units and decimal places matter
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