SSC CPO Tables

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 Key Formulas: 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

To compare ratios quickly, cross-multiply. For a/b vs c/d, compare a×d with b×c

• 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.