Practice Questions
Concept Explanation
Caselet DI presents data as a short paragraph instead of a chart. You must extract numbers and relationships from text.
How to Solve Caselets
- Underline all numeric facts and what they refer to.
- Build a mini-table mentally before calculating.
- Watch for “respectively,” “more than,” and “of the remaining.”
Calculation Shortcuts
- Translate “A is 20% more than B” to A = 1.2B.
- For ratios, assign variables (e.g., 3x and 5x).
- Sum parts when the caselet gives sequential splits.
Example
“Shop sold 120 units in Jan and 150 in Feb.” Total = 270; Feb is 25% more than Jan.
Common Trap
Percentage “of the remaining” uses a new base after the first deduction.
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Q1 Easy
A caselet states: Jan sales = 120 units, Feb sales = 150 units. Total for two months is:
Explanation120 + 150 = 270. -
Q2 Easy
Revenue: Product A = Rs. 80 lakh, Product B = Rs. 120 lakh. Combined revenue is:
Explanation80 + 120 = 200 lakh. -
Q3 Easy
A caselet: Team X scored 45 runs, Team Y scored 60 runs. Y scored more by:
Explanation60 − 45 = 15 runs. -
Q4 Medium
Expenses: Rent = Rs. 50,000; Salary = Rs. 1,50,000. Salary is what % of total?
ExplanationTotal = 2,00,000. (1,50,000/2,00,000) × 100 = 75%. -
Q5 Easy
A shop sold 200 items; 30% were type A. Count of type A is:
Explanation0.30 × 200 = 60. -
Q6 Easy
Caselet: Male = 240, Female = 360 in a group. Ratio Male : Female is:
Explanation240 : 360 = 2 : 3. -
Q7 Easy
Income Rs. 80,000; 25% saved. Savings amount is:
Explanation0.25 × 80,000 = 20,000.
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Q8 Medium
A caselet: First batch 120, second batch 150, third batch 90. Average batch size is:
Explanation(120+150+90)/3 = 360/3 = 120. -
Q9 Medium
Price dropped from Rs. 500 to Rs. 400. Percentage decrease is:
Explanation(100/500) × 100 = 20%. -
Q10 Medium
Caselet: A is 20% more than B. If B = 250, then A =
ExplanationA = 1.2 × 250 = 300. -
Q11 Easy
Total 600 students; Science = 240, Commerce = 240. Remaining are Arts. Arts count is:
Explanation600 − 480 = 120. -
Q12 Medium
Caselet: Cost = Rs. 800, selling price = Rs. 1,000. Profit % on cost is:
Explanation(200/800) × 100 = 25%. -
Q13 Easy
Three cities sold 90, 120, 150 units. Total sales is:
Explanation90 + 120 + 150 = 360. -
Q14 Hard
A caselet: 40% of Rs. 1,250 is spent on food. Amount spent is:
Explanation0.40 × 1,250 = 500.
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DS1 Easy
What is the total of Jan and Feb sales?
Statement IJan = 120 and Feb = 150.
Statement IIFeb is 25% more than Jan.
ExplanationStatement I alone: total = 270. -
DS2 Easy
What is the savings if income is Rs. 80,000 and 25% is saved?
Statement IIncome = Rs. 80,000.
Statement II25% of income is saved.
ExplanationNeed both: 0.25 × 80,000 = 20,000.
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DS3 Medium
What is A if A is 20% more than B and B = 250?
Statement IB = 250.
Statement IIA exceeds B by 50.
ExplanationNeed B and the relationship: A = 300. -
DS4 Medium
What is the profit percentage on cost?
Statement ICost = Rs. 800 and SP = Rs. 1,000.
Statement IIProfit = Rs. 200.
ExplanationStatement I alone: (200/800) × 100 = 25%.