Caselet DI

Master Caselet Data Interpretation. Learn to extract data from paragraphs into Tables and Venn Diagrams. Covers Arithmetic, Logical, and Flow-based Caselets.

Model 1: Venn Diagram (Set Theory)

      <ul class='list-disc pl-6'>
        <li><strong>Scenario:</strong> Data involves groups with overlaps (e.g., Read Newspaper A, B, C; Play Cricket, Football).</li>
        <li><strong>The Formulas (3 Sets):</strong> <br>
          Total = n(A) + n(B) + n(C) - n(AтИйB) - n(BтИйC) - n(CтИйA) + n(AтИйBтИйC) + None.
        </li>
        <li><strong>Strategy:</strong> Start from the innermost intersection (All 3) and work outwards.</li>
        <li><strong>Regions:</strong> <br>
          "Exactly 2" = (AтИйB only) + (BтИйC only) + (CтИйA only).
        </li>
      </ul>
    

Example:

Q: Total=100. A=50, B=40, Both=10. Find Neither.
Solution: AтИкB = 50+40-10 = 80. Neither = 100 - 80 = 20.

Model 2: Tabular/Tree Split

      <ul class='list-disc pl-6'>
        <li><strong>Scenario:</strong> A paragraph describes a hierarchy. Total Employees -> Departments -> Male/Female -> Graduate/PG.</li>
        <li><strong>Strategy:</strong> Draw a Tree Diagram or Table immediately. Do not read the whole text twice.</li>
        <li><strong>Calculation Tip:</strong> Use a base number (like 100 or x) if total is missing, but usually Total is given.</li>
      </ul>
    

Example:

Q: Total 1000. 40% HR. In HR, 60% Female.
Solution: HR = 400. Female HR = 240. Male HR = 160.

Model 3: Arithmetic Caselet

      <ul class='list-disc pl-6'>
        <li><strong>Scenario:</strong> A story problem involving Profit/Loss, SI/CI, or Time/Distance for multiple people.</li>
        <li><strong>Strategy:</strong> Treat it like multiple arithmetic word problems linked by common data.</li>
        <li><strong>Example:</strong> Three friends invest money. A invests for 2 years, B for 3...</li>
      </ul>
    

Example:

Q: A invests 1000 for 2 yrs. B invests 2000 for 1 yr. Ratio of Profit?
Solution: (1000├Ч2) : (2000├Ч1) = 2000 : 2000 = 1 : 1.