23 questions from actual SSC GD Constable papers · all shown free · click option to reveal solution
Study the following table showing monthly sales data (in lakhs ₹) of five retail stores and answer the questions.
| Store Name | January | February | March | April | May |
|---|---|---|---|---|---|
| Store A | 45 | 50 | 55 | 60 | 70 |
| Store B | 30 | 35 | 40 | 45 | 50 |
| Store C | 60 | 65 | 70 | 75 | 80 |
| Store D | 25 | 28 | 32 | 36 | 40 |
| Store E | 40 | 42 | 44 | 46 | 48 |
Study the following table showing monthly production figures (in units) of five factories and answer the questions.
| Factory | January | February | March | April | May |
|---|---|---|---|---|---|
| Factory A | 1200 | 1400 | 1600 | 1800 | 2000 |
| Factory B | 1500 | 1500 | 1800 | 2100 | 2400 |
| Factory C | 800 | 900 | 1000 | 1100 | 1200 |
| Factory D | 1000 | 1200 | 1400 | 1600 | 1800 |
| Factory E | 1800 | 1800 | 1800 | 1800 | 1800 |
Study the following table showing monthly production figures (in units) of five factories and answer the questions.
| Factory | January | February | March | April | May |
|---|---|---|---|---|---|
| Factory A | 1200 | 1400 | 1600 | 1800 | 2000 |
| Factory B | 1500 | 1500 | 1500 | 1500 | 1500 |
| Factory C | 800 | 900 | 1000 | 1100 | 1200 |
| Factory D | 2000 | 1900 | 1800 | 1700 | 1600 |
| Factory E | 1000 | 1100 | 1300 | 1400 | 1500 |
Study the following table showing quarterly sales (in lakhs ₹) of five companies across four quarters of a financial year and answer the questions.
| Company | Q1 | Q2 | Q3 | Q4 |
|---|---|---|---|---|
| Alpha | 120 | 150 | 180 | 210 |
| Beta | 100 | 120 | 140 | 160 |
| Gamma | 80 | 100 | 120 | 140 |
| Delta | 140 | 140 | 140 | 140 |
| Epsilon | 160 | 140 | 120 | 100 |
Note: All figures are in lakhs of rupees (₹).
Study the following table showing quarterly sales data (in lakhs ₹) for five product categories across a retail company and answer the questions.
| Product Category | Q1 | Q2 | Q3 | Q4 |
|---|---|---|---|---|
| Electronics | 240 | 280 | 320 | 360 |
| Clothing | 180 | 198 | 216 | 240 |
| Home & Kitchen | 120 | 135 | 150 | 180 |
| Sports & Outdoors | 100 | 110 | 121 | 133 |
| Books & Media | 60 | 66 | 72 | 84 |
Bar Charts are visual representations of data using rectangular bars. The length or height of each bar represents the value of data. In SSC CGL, bar charts are a high-frequency topic appearing in almost every paper. Core Concept: A bar chart displays data through bars where each bar's dimension (height in vertical charts, length in horizontal charts) shows the quantity or value. The bars can be grouped, stacked, or simple depending on data presentation.
Bar charts have two axes - horizontal (x-axis) and vertical (y-axis). One axis shows categories while the other shows values. Bars should have equal width and proper spacing. Scale must be uniform and clearly marked.
SSC CGL typically asks 4-5 questions from bar charts. Common question types include: finding totals, averages, percentages, ratios, maximum/minimum values, and year-on-year comparisons. Multi-bar charts showing data for different categories across years are very common.
#1 - Quick Percentage: For percentage questions, use the formula (Target Value/Base Value) ×
Always identify which value is the base correctly. Shortcut Trick #2 - Ratio Simplification: When finding ratios, divide both numbers by their HCF. For example, 240:180 becomes 4:3 by dividing by
Shortcut Trick #3 - Average Formula: Instead of adding all values and dividing, use: Average = (Sum of products of each value and frequency) / Total frequency.
Identify values - 2019 sales = 40 lakhs, 2022 sales = 100 lakhs
Apply formula - Percentage increase = [(100-40)/40] × 100
Calculate - (60/40) × 100 = 1.5 × 100 = 150% Answer: 150% increase Worked Example 2: A bar chart shows production of three items P, Q, R in 2021: P=120, Q=80, R=200. Find the ratio of P to total production.
Find total production - 120 + 80 + 200 = 400
Find ratio - P : Total = 120 : 400
Simplify - Divide by HCF (40) = 3 : 10 Answer: 3:10
#1: Students often confuse the base value in percentage calculations. Always remember - percentage increase/decrease is calculated with respect to the original (earlier) value, not the final value. This is the most frequent error in bar chart questions. Another common error is misreading the scale or units.
Always check if values are in units, tens, hundreds, thousands, or lakhs. Missing a zero in calculation can cost marks. Time-saving tip: In complex calculations, use approximation when answer choices are far apart. Round numbers to nearest 10 or 100 for quick mental math.