Caselets Aptitude Questions with Solutions
29 Caselets questions with hints, worked solutions and time targets — 7 easy · 17 medium · 5 hard.
- Section: Data Interpretation
- Questions: 29
- By difficulty: 7 easy · 17 medium · 5 hard
- Cost: Free, unlimited on every plan
Data buried in a paragraph — extract it, tabulate it, answer.
Caselets: the essentials
- Tabulate as you read. Turn the paragraph into a small table, one row per group, with columns for the headcount and each breakdown. Most errors come from answering off the paragraph.
- Each percentage applies to its own base, in the order given: a quarter of the engineers is not a quarter of the staff.
- Work out any missing category from the others: the rest = 100% − the stated shares.
- An overall percentage = total favourable ÷ total, never the average of the group percentages.
- Groups of different sizes need a weighted average, which leans towards the larger group.
- Overlaps: at least one = A + B − both; neither = total − at least one; only A = A − both.
- Slab pricing: charge each band at its own rate.
- Unit chains: one step at a time, such as kilometres to litres to rupees.
- Targets: what is left ÷ the time left.
- When one percentage applies to every part, apply it once to the total; when it applies to part of a bill, split the bill first.
- Ratio splits: find the value of one part once, then treat later changes as ordinary arithmetic.
- Divide by the number of periods actually listed, and check that the parts add back to the stated total.
Example: of 600 members, 55% use the gym, 40% the pool and 20% both. At least one: 55 + 40 − 20 = 75%, which is 450.
Questions
- Staff in an office Medium
An office employs 240 people. 60% work in engineering, and of those, one quarter are women. Among the remaining staff, half are women. - Books in a library Medium
A library holds 5,000 books. 40% are fiction, 35% are non-fiction, and the rest are reference. - Revenue at two shops Medium
Shop X sells 300 units at ₹40 each; Shop Y sells 250 units at ₹50 each. Both give a 10% discount on the listed price. - Pass rates in two sections Medium
Section A has 50 students of whom 80% passed. Section B has 30 students of whom 60% passed. What is the overall pass percentage across both sections? - Meeting a production target Easy
A factory must produce 12,000 units in a month. In the first 18 days it produced 6,300 units. The month has 30 days. - Splitting a travel budget Hard
A team's travel budget of ₹90,000 is split between flights, hotels and meals in the ratio 5 : 3 : 1. - Admissions across three colleges Medium
Three colleges admitted 1,200 students in all. College A took 40% of them, College B took 35%, and College C took the rest. - The remaining college Easy
Three colleges admitted 1,200 students in all. College A took 40%, College B took 35%, and College C took the rest. How many students did College C admit? - Two shifts in a factory Medium
A factory runs two shifts. The day shift has 120 workers producing 15 units each; the night shift has 80 workers producing 12 units each. - Profit across two products Medium
A shop sells 200 units of product X at ₹50 each, on which its profit is 20% of the selling price, and 150 units of product Y at ₹80 each, on which its profit… - A survey of readers Medium
In a survey of 500 people, 280 read newspaper A, 220 read newspaper B, and 90 read both. How many read neither newspaper? - Readers of only one paper Easy
In a survey of 500 people, 280 read newspaper A, 220 read newspaper B, and 90 read both. How many read only newspaper A? - Splitting a project budget Hard
A project budget of ₹4,80,000 is divided between design, build and testing in the ratio 3 : 5 : 4. Half of the testing budget is later moved to build. - Attendance over a week Easy
A training programme ran for 5 days. Attendance was 80, 92, 76, 88 and 84. Anyone attending on a given day counts once for that day. - Meeting a sales target Medium
A salesperson must sell 600 units in a quarter. In the first two months she sold 170 and 190 units. - Two departments, one average Medium
A company has 40 employees in sales averaging ₹30,000 a month and 60 in engineering averaging ₹50,000. What is the average salary across the whole company? - A discount on part of the bill Medium
A restaurant bill comes to ₹2,400. A 20% discount applies to the food portion of ₹1,500, and the rest of the bill is charged in full. - Fuel cost for a fleet Medium
A fleet of 12 vans each travels 150 km a day. Each van covers 10 km per litre, and fuel costs ₹100 per litre. What is the fleet's daily fuel cost? - Students in a hostel Medium
A hostel houses 450 students. 60% are undergraduates and the rest postgraduates. Two-fifths of the undergraduates are women. - Postgraduates in the hostel Easy
A hostel houses 450 students, of whom 60% are undergraduates and the rest postgraduates. Half the postgraduates are women. How many postgraduate men are there? - Books borrowed in a week Hard
A library lent 1,200 books in a week. 35% were fiction, 25% non-fiction, and the rest reference. - Output of two machines Medium
Machine A produces 240 units in 8 hours; machine B produces 300 units in 10 hours. Both run for 6 hours. How many units do they produce together? - A tiered electricity bill Medium
Electricity costs ₹5 per unit for the first 100 units and ₹8 per unit thereafter. A household uses 250 units. What is the bill? - Delegates at a conference Hard
A conference had 800 delegates. 45% attended the morning session and 60% the afternoon session, while 25% attended both. How many attended neither session? - Transport cost per unit Medium
A firm ships 2,400 units in lorries carrying 150 units each. Each lorry trip costs ₹4,500. What is the transport cost per unit? - Marks across three papers Hard
A candidate scored 72, 84 and 90 in three papers, each marked out of 100. The papers carry weights of 2, 3 and 5 respectively. What is the weighted average? - The busiest day Easy
A shop was open for six days last week and sold 1,200 items in all. - Average daily sales Easy
A shop was open for six days last week and sold 1,200 items in all. - Wednesday's share of the week Medium
A shop was open for six days last week and sold 1,200 items in all.
Placement tests that ask caselets
- Full-Length Aptitude Paper CodeKairo
- TCS NQT — Foundation TCS
- TCS NQT — Foundation + Advanced TCS
- Infosys SE / DSE — Aptitude Infosys
- Wipro NLTH — Aptitude Wipro
- Accenture — Cognitive & Technical Accenture
- Cognizant GenC — Aptitude Cognizant
- HCLTech — Written Test HCLTech
- Tech Mahindra — Aptitude & Technical Tech Mahindra
- Amazon — SDE Online Assessment Amazon
- Goldman Sachs — Aptitude Test Goldman Sachs
- Adobe — Campus Aptitude Adobe
- ZS Associates — Aptitude ZS Associates