Top Aptitude Questions Asked in IT Company Placements 2026
Most important aptitude questions for TCS, Infosys, Wipro, Accenture placements in 2026. Quantitative, logical, and verbal aptitude with solutions.
Every major IT company's first round is an aptitude test. Here's a curated set of the most frequently asked questions with solutions.
Section 1: Quantitative Aptitude
Q1: Time and Work
If A can do a job in 10 days and B in 15 days, how long together?
Solution:
- A's rate: 1/10 per day
- B's rate: 1/15 per day
- Combined: 1/10 + 1/15 = 3/30 + 2/30 = 5/30 = 1/6
- Together: 6 days ✓
Q2: Percentage
A price increases by 20% and then decreases by 20%. Net change?
Solution: Start with 100. After 20% increase: 120. After 20% decrease: 120 × 0.8 = 96. Net change: -4% ✓
Q3: Speed, Distance, Time
A train 200m long crosses a pole in 10s. What is its speed in km/h?
Solution: Speed = 200m/10s = 20 m/s = 20 × 18/5 = 72 km/h ✓
Q4: Profit and Loss
Cost price ₹800, selling price ₹960. Profit %?
Solution: Profit = 960 - 800 = 160. Profit % = (160/800) × 100 = 20% ✓
Section 2: Logical Reasoning
Q5: Number Series
2, 6, 12, 20, 30, ?
Solution: Differences: 4, 6, 8, 10, 12 (increasing by 2) Next: 30 + 12 = 42 ✓
Q6: Blood Relations
A is B's mother. C is A's brother. D is C's father. How is D related to B?
Solution: D is father of C. C is brother of A. A is mother of B. D is maternal grandfather's father... Actually: D → C's father, C is A's brother → D is A's father/grandfather? D is father of C (A's brother) → D is A's father → D is B's maternal grandfather ✓
Q7: Coding-Decoding
If CLOUD is coded as DNPVE, how is RAIN coded?
Solution: C→D (+1), L→N (+2), O→P (+1), U→V (+1), D→E (+1) Pattern: each letter +1, except L→N (+2)? Actually: C+1=D, L+2=N, O+1=P, U+1=V, D+1=E (L shifts by 2 because it's the 2nd letter) R+1=S, A+2=C, I+1=J, N+1=O → SCJO ✓
Section 3: Verbal Ability
Q8: Reading Comprehension Strategy
- Read the question FIRST, then the passage
- Look for keywords from the question in the passage
- Eliminate clearly wrong options first
Q9: Grammar — Common Errors
Identify the error: "Neither of the students are ready." Error: "are" should be "is" — with neither/either, use singular verb. Correct: "Neither of the students is ready" ✓
Section 4: Technical MCQs
Q10: DBMS
What is the output of: SELECT COUNT() FROM emp WHERE salary > 50000?* Counts all employees with salary > 50000 — depends on data, but tests understanding of WHERE clause with COUNT.
Q11: OS
What is a deadlock? A deadlock occurs when two or more processes wait indefinitely for resources held by each other.
Preparation Strategy
| Company | Aptitude Focus | Time |
|---|---|---|
| TCS | Quantitative heavy | 90 min |
| Infosys | Logical + verbal | 65 min |
| Wipro | All sections balanced | 60 min |
| Accenture | Communication + basic coding | 80 min |
Daily Practice Plan
- 30 quantitative questions/day (PrepInsta, IndiaBIX)
- 20 logical reasoning puzzles
- 1 reading comprehension passage
- Review EVERY wrong answer
Classroom Tech Aptitude Crash Course
Classroom Tech runs focused aptitude crash courses before major placement seasons — covering TCS, Infosys, Wipro, and Accenture patterns with 500+ practice questions.
Book a placement prep consultation with Satyaki Das at Topmate.
About Satyaki Das & Classroom Tech
Satyaki Das is the Founder of Classroom Tech and Co-Founder of XShare. He holds an MTech in Computer Engineering from Jadavpur University and an MCA from Techno Main, Salt Lake, Kolkata. A Java Full Stack Developer at TCS, GATE-qualified, and Codevita Rank 848, Satyaki has 11+ years of teaching experience mentoring BCA, B.Tech, MCA, and working professionals into roles at TCS, Wipro, Infosys, Accenture, EY, Deloitte, and Capgemini.
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