Top 39 TCS Aptitude Interview Questions and Answers
TCS has opened over 500 job opportunities for 2025, giving aspiring candidates a chance to join one of the top IT services companies in the world. To land a position, you’ll need to clear several stages of the TCS recruitment process, with the aptitude interview round being one of the most important. This round evaluates your analytical thinking, logical reasoning, and verbal skills. With tough competition, it’s crucial to be well-prepared for these questions. In this blog, we’ve compiled 39 TCS aptitude interview questions and answers, along with expert tips to help you ace the interview and boost your chances of success.
TCS Application Process
Getting a job at Tata Consultancy Services (TCS) involves a well-structured application process that evaluates your technical and interpersonal skills. Following this process carefully can increase your chances of securing a position. Here are the rounds that you can expect:
- Written Round: This round focuses on testing your logical reasoning, quantitative aptitude, and verbal ability as part of the aptitude test for TCS company. The test usually includes multiple-choice questions designed to evaluate problem-solving and analytical thinking skills.
- Technical Round: In this round, the panel assesses your technical knowledge and understanding of core concepts related to your field of study. Questions often cover programming languages, data structures, algorithms, and domain-specific topics. Pro Tip: If you are preparing for TCS coding interview questions and answers, focus on mastering data structures, algorithms, and problem-solving techniques. Practice solving problems under time constraints to improve efficiency and accuracy during the interview.
- Managerial Round: This round evaluates your ability to handle real-world challenges and solve practical problems. Interviewers ask situational questions to understand your decision-making skills and how you approach tasks in a professional environment.
- HR Round: The final round focuses on understanding your personality, communication skills, and organizational cultural fit. Questions may include discussing your aspirations, strengths, and reasons for joining TCS. Pro Tip: If you are preparing for TCS HR interview questions and answers, focus on demonstrating your interpersonal skills, adaptability, and alignment with the company’s culture. Be authentic and show how your values match the organization’s goals.


TCS Quantitative Aptitude Interview Questions and Answers
Quantitative aptitude questions in TCS interviews evaluate your mathematical skills and ability to solve numerical problems under time constraints. This section covers topics like arithmetic, algebra, geometry, and number series. Here are the questions and answers to practice for this section, which will help in your aptitude preparation for TCS.
Q1. What is the smallest number that is divisible by 8, 12, and 18?
Sample Answer: To solve this, calculate the LCM (Least Common Multiple) of the numbers by finding their prime factors. Multiply the highest powers of all prime factors to get the LCM.
Prime factors:
8 = 2³
12 = 2² × 3
18 = 2 × 3²
LCM = 2³ × 3² = 72
Hence, the smallest number is 72.
Q2. The HCF of two numbers is 9, and their LCM is 108. If one number is 27, find the other number.
Sample Answer: Use the formula: HCF × LCM = Product of the two numbers. Divide the product by the known number to find the other number.
9 × 108 = 27 × x
x = 36
The other number is 36.
Q3. Which smallest number must be added to 3456 to make it divisible by 11?
Sample Answer: Apply the divisibility rule for 11, which involves subtracting and adding alternate digits of the number. Adjust the total to make it a multiple of 11.
(3 + 5) - (4 + 6) = 8 - 10 = -2
Adding 2 will make it divisible by 11.
The smallest number to add is 2.
Q4. Convert 0.625 into a fraction in its simplest form.
Sample Answer: Express the decimal as a fraction by writing it over a power of 10 and then simplifying it.
0.625 = 625/1000
Simplify by dividing by their greatest common divisor (125):
625 ÷ 125 = 5, 1000 ÷ 125 = 8
The fraction is 5/8.
Q5. A rectangle has a length of 12 cm and a width of 8 cm. Find its diagonal length.
Sample Answer: Use the Pythagorean theorem to calculate the diagonal. Add the squares of the length and width, then find the square root of the sum.
Diagonal² = 12² + 8² = 144 + 64 = 208
Diagonal = √208 = 14.42 cm (approx).
Q6. The sum of the ages of a father and his son is 50 years. The father’s age is three times that of the son. Find their ages.
Sample Answer: Form an equation based on the given relationship and solve for the variable. This problem uses basic algebra to create a linear equation that simplifies solving for unknown variables. By interpreting age relationships correctly, similar age-based questions can be solved quickly.
Let the son's age be x.
Father's age = 3x
x + 3x = 50
4x = 50
x = 12.5 (son), father's age = 37.5 years.
Q7. How many liters of water must be added to 20 liters of milk to make a solution where the ratio of milk to water is 4:1?
Sample Answer: Apply the concept of ratios to determine the required quantity. Use the equation (Milk / Water) = 4 / 1 to solve. This problem relies on setting up proportions correctly and using cross-multiplication to find the unknown. Practicing different mixture problems enhances speed and accuracy for ratio-related questions.
(20 / x) = 4 / 1
20 = 4x
x = 5 liters of water.
Q8. The average of five numbers is 26. If one number is excluded, the average becomes 24. Find the excluded number.
Sample Answer: Average problems require breaking down the components step by step. In this, you need to find the total sum of the numbers using the average formula. Subtract the total of the remaining numbers to determine the excluded one.
Total of 5 numbers = 26 × 5 = 130
Total of 4 numbers = 24 × 4 = 96
Excluded number = 130 - 96 = 34.
Q9. At what time between 3 and 4 o’clock will the hands of the clock overlap?
Sample Answer: Clock problems test the understanding of angles and time intervals. In this, you need to calculate the relative speeds of the hour and minute hands to determine the time of overlap.
At 3 o'clock, the minute hand is at 12, and the hour hand is at 3.
To overlap, the minute hand must cover 90 degrees.
Time = (90 × 2) / 11 = 16.36 minutes (approx).
The overlap happens at 3:16.
Q10. Solve for x: 5x + 3 = 2x + 18.
Sample Answer: Clock problems test the understanding of angles and time intervals. By calculating the angle between the hour and minute hands, you can predict the exact point of overlap. So, you just rearrange the terms to isolate the variable and solve for it.
Rearrange: 5x - 2x = 18 - 3
3x = 15
x = 5.
Q11. The price of a product is increased by 20%. Later, it is reduced by 20%. What is the net change in price?
Sample Answer: Understanding percentage increases and decreases requires calculating in steps. This approach helps tackle similar problems in discount or profit calculations. So, start with an assumed base price and calculate changes sequentially to find the net effect.
Let the initial price be 100.
After a 20% increase: 100 + 20 = 120
After a 20% decrease: 120 - (20% of 120) = 120 - 24 = 96
Net change = 100 - 96 = 4% decrease.
Q12. A man spends 75% of his income. If his income increases by 20% but his spending habits remain unchanged, by what percentage does his savings increase?
Sample Answer: This problem highlights the importance of isolating parts of income and expenditure to calculate growth in savings effectively. In this, calculate the initial savings and compare them with the new savings after the income increase.
Let income = 100, spending = 75, savings = 25.
After a 20% increase, income = 120, spending = 75.
New savings = 120 - 75 = 45
Savings increase = (45 - 25) / 25 × 100 = 80% increase.
TCS Verbal Ability Aptitude Interview Questions and Answers
The verbal ability section tests your command of the English language by focusing on grammar, comprehension, and sentence correction. Strong communication and language skills are essential for performing well in this round. Here are the questions and answers that can strengthen your verbal preparation, helping you in your overall aptitude preparation for TCS.
Q13. Identify the part of the sentence with an error:
‘The company have launched a new product yesterday.’
Sample Answer: The error lies in ‘have launched.’ The correct form is ‘has launched’ because ‘company’ is singular.
Corrected sentence: ‘The company has launched a new product yesterday.’
Q14. Choose the synonym for the word ‘Prudent.’
a) Careless
b) Wise
c) Reckless
d) Immature
Sample Answer: The correct synonym is b) Wise.
‘Prudent’ means showing good judgment or being cautious.
Q15. Choose the antonym for ‘Fragile.’
a) Brittle
b) Delicate
c) Strong
d) Weak
Sample Answer:
The correct antonym is c) Strong.
‘Fragile’ means easily breakable, and ‘strong’ is the opposite.
Q16. Select the appropriate word to complete the sentence:
‘The teacher insisted that everyone ______ their homework on time.’
a) submits
b) submit
c) submitting
d) submitted
Sample Answer: The correct option is b) submit. In the subjunctive mood (expressing a demand or suggestion), the base form of the verb is used.
Q17. Choose the correctly spelled word.
a) Accomodate
b) Accommodate
c) Acommodate
d) Accommadate
Sample Answer: The correct spelling is b) Accommodate.
Q18. Rearrange the words to form a meaningful sentence:
‘the / won / team / trophy / the.’
Sample Answer: The correct sentence is: ‘The team won the trophy.’
Q19. Arrange the words in the proper order to make a meaningful sentence:
a) morning / a / I / run / every / go / for
Sample Answer: Word ordering tests logical thinking and fluency. Rewriting sentences in different formats can help develop this skill.
So the correct order: ‘I go for a run every morning.’
Q20. Correct the following sentence:
‘He did not knew about the changes in policy.’
Sample Answer: Sentence correction focuses on identifying verb forms, subject-verb agreement, and grammatical errors.
Corrected sentence: ‘He did not know about the changes in policy.’
The auxiliary ‘did’ requires the base form of the verb ‘know.’
Q21. Choose the correct option to improve the sentence:
‘The food was so hot that I could not eat it.’
a) too hot that I could not eat it
b) hot enough that I could not eat it
c) so hot for eating
d) No improvement
Sample Answer: Sentence improvement requires understanding sentence structures and recognizing redundancy or incorrect phrasing.
The correct answer is d) No improvement. The sentence is grammatically correct and logically complete.
Q22. Complete the sentence:
‘If you ______ harder, you will pass the exam.’
a) studied
b) studies
c) study
d) studying
Sample Answer: Completing statements tests knowledge of tenses and conditionals. Recognizing sentence patterns improves accuracy.
The correct option is c) study. ‘If’ clauses use present tense with future results.
Q23. Rearrange the sentences to form a coherent paragraph:
P. It also saves money.
Q. Online shopping is convenient.
R. You can compare prices easily.
S. It allows you to avoid crowds.
Sample Answer: Ordering of sentences tests logical flow and coherence. Look for sentence connectors and transitions to arrange the sequence properly.
Correct order: Q-S-R-P. This sequence logically introduces online shopping, followed by benefits, and concludes with cost-saving.
Q24. One who compiles dictionaries:
a) Editor
b) Lexicographer
c) Publisher
d) Cartographer
Sample Answer: The correct answer is b) Lexicographer.
Q25. Choose the meaning of the idiom ‘Hit the nail on the head.’
a) To make a mistake
b) To describe exactly what is causing a problem
c) To act foolishly
d) To create confusion
Sample Answer: Idioms often have figurative meanings. Memorizing idioms with examples can help understand and apply them correctly.
The correct meaning is b) To describe exactly what is causing a problem.
Q26. Convert to passive voice:
‘She is writing a letter.’
Sample Answer: Changing voice requires shifting the focus of the sentence from subject to object and adjusting verb forms appropriately.
Passive voice: ‘A letter is being written by her.’
Q27. Convert to indirect speech:
He said, ‘I will visit the doctor tomorrow.’
Sample Answer: Change of speech involves modifying pronouns, time expressions, and verb tenses correctly to reflect indirect narration.Indirect speech: He said that he would visit the doctor the next day.
TCS Logical Reasoning Aptitude Interview Questions And Answers
Logical reasoning aptitude questions and answers for TCS are designed to measure your ability to think critically and solve complex problems. This section includes puzzles, patterns, and sequence-based questions that assess your logical decision-making skills. Here are the questions and answers to sharpen your logical reasoning:
Q28. What is the next number in the series: 2, 6, 12, 20, 30,?
a) 36
b) 40
c) 42
d) 56
Sample Answer: Number series questions often follow a mathematical pattern. Recognizing the relationship between terms is essential to predict the next number correctly.
The correct answer is c) 42. The pattern follows n2+nn^2 + nn2+n. For the 6th term: 62+6=426^2 + 6 = 4262+6=42.
Q29. Find the missing term: A1, C3, E5, G7, ?
a) H9
b) I9
c) J9
d) K11
Sample Answer: In alphanumeric series, both letters and numbers follow a specific pattern. Carefully analyzing the change in each element helps identify the next term.
The correct answer is b) I9. The letters progress by 2 (A, C, E, G, I), and the numbers increase by 2 (1, 3, 5, 7, 9).
Q30. Which word does not belong to the group?
a) Apple
b) Banana
c) Mango
d) Tomato
Sample Answer: Classification problems test your ability to detect differences in a group. Look for an element that stands apart based on a defining feature.
The correct answer is d) Tomato. All others are sweet fruits, while tomato is treated as a vegetable in culinary terms.
Q31. Which of the following is related to the next in the following series?
Pen: Write :: Knife :
a) Cut
b) Slice
c) Pierce
d) Sharpen
Sample Answer: Analogy reasoning questions draw parallels between pairs of objects or functions. Finding the right functional relationship between the second pair is key.
The correct answer is a) Cut. A pen is used to write, and a knife is used to cut.
Q32. A store announces: ‘All items are 20% off, but electronics have only 10% discount.’
Which statement is true?
a) Electronics are cheaper than other items.
b) All items have a discount.
c) Electronics are not on sale.
d) Clothing is not discounted.
Sample Answer: Making judgments involves carefully interpreting the given information without assuming details. Pay close attention to the wording.
The correct answer is b) All items have a discount. Electronics receive a smaller discount, but they are still part of the sale.
Q33. Statement: ‘All cats are mammals. Some mammals are lions.’
Conclusion Options:
I. Some cats are lions.
II. All lions are mammals.
Sample Answer: Statement and conclusion questions require a logical evaluation of the given data. Focus on valid relationships and avoid assumptions.
The correct conclusion is II. All lions are mammals. The first conclusion cannot be drawn directly from the information provided.
Q34. Which of the following is essential for communication?
a) Language
b) Listening
c) Understanding
d) Message
Sample Answer: Essential part questions highlight the fundamental element necessary for an action or process. Identifying the core requirement ensures the correct answer.
The correct answer is d) Message. Communication cannot happen without a message to convey.
Q35. Which of the following is related to the next in the following series?
Train: Track :: Boat : ?
a) Road
b) Water
c) Harbor
d) Sky
Sample Answer: Analogies draw relationships between objects and their environments. Recognizing the link between the first pair helps predict the second.
The correct answer is b) Water. A train moves on a track, and a boat moves on water.
Q36. Which number will complete the series? 15, 30, 45, 60, ?
a) 70
b) 75
c) 80
d) 90
Sample Answer: Number patterns typically follow arithmetic or geometric sequences. Identifying the step difference is crucial to solving the problem.
The correct answer is b) 75. The series increases by 15 at each step.
Q37. Statement: ‘All programmers are coders. Some coders are engineers.’
Conclusion Options:
I. All engineers are programmers.
II. Some coders may not be programmers.
Sample Answer: Evaluating logical conclusions involves verifying the direct relationships provided in the statement. Avoid jumping to unsupported assumptions.
The correct conclusion is II. Some coders may not be programmers. The second part of the statement leaves room for this possibility.
Q38. Which is essential for cooking?
a) Fire
b) Utensils
c) Food
d) Water
Sample Answer: Essential part questions focus on identifying the primary element without which the process cannot occur.
The correct answer is c) Food. Cooking cannot happen without food.
Q39. Which word does not belong to the group?
a) Triangle
b) Rectangle
c) Circle
d) Cube
Sample Answer: Classification questions test your ability to identify differences in form or function within a group.
The correct answer is d) Cube. All other options are 2D shapes, while a cube is 3D.
Pro Tip: If you want to explore more aptitude questions with answers, keep practicing consistently to boost your problem-solving skills. Focus on mastering key concepts, and tackle a variety of questions to improve both speed and accuracy.
Tips for Preparing for the TCS Aptitude Interview Round
Preparing for the aptitude questions for the interview in TCS requires focus, strategic planning, and consistent practice. A solid understanding of concepts, along with time management and targeted preparation, can help you perform confidently. Here are the tips to enhance your preparation:
- Understand the Syllabus: Start by thoroughly reviewing the syllabus to identify key topics like number systems, percentages, and probability. Understanding the syllabus will help you focus on the most relevant areas and tackle each section systematically.
- Practice Regularly: Consistent practice is essential for improving your problem-solving skills. Regularly solving mock tests and papers from previous years will help you become familiar with the test format and improve both your speed and accuracy.
- Work on Speed and Accuracy: Focus on enhancing both speed and accuracy when solving questions. Practicing under time constraints will help you learn to solve problems quickly without compromising on correctness, ensuring you complete all questions within the time limit.
- Focus on Basics: Strengthening your understanding of basic concepts is crucial for tackling more advanced problems with ease. Once you master the fundamentals, you can approach even the most challenging questions confidently. Books like ‘Quantitative Aptitude by R.S. Agarwal’, and online tutorials from YouTube can help reinforce these fundamentals, allowing you to approach advanced topics more confidently.
- Use Time Management Techniques: Time management is key to succeeding in aptitude tests. Practice solving questions within a specific time frame to simulate real test conditions, helping you pace yourself and ensure you can attempt all questions.
- Review Mistakes: After each practice session, take the time to review the mistakes you made. Analyzing your errors will help you understand where you went wrong, allowing you to avoid similar mistakes in future tests and improve your performance.


Conclusion
In this blog, we have covered over 35+ TCS aptitude interview questions and answers. Additionally, we have provided you with valuable insights to help you excel in the aptitude round. From understanding the types of questions to mastering the strategies for solving them, we’ve aimed to equip you with everything you need for your preparation. Remember, consistent practice and understanding the core concepts are key to performing well. For more tips on cracking TCS interviews, make sure to check out our detailed guide on TCS interview questions. This will further enhance your readiness for the entire recruitment process and boost your confidence.
FAQs
Answer: Yes, the TCS aptitude test can be challenging, but with thorough preparation, it is manageable. The questions cover a range of topics, including quantitative aptitude, logical reasoning, and verbal ability. Regular practice can help you get comfortable with the test format and improve your performance.
Answer: No, there is no negative marking in the TCS aptitude test. You are not penalized for incorrect answers, which allows you to attempt all questions without worrying about losing marks for guessing. However, answering accurately and within the time limit is essential.
Answer: Yes, you can skip questions in the TCS aptitude test, but it’s advisable to attempt as many questions as possible. Since there is no negative marking, answering all questions increases your chances of scoring well and advancing to the next stage.
Answer: Yes, the TCS aptitude test is conducted online. The test is typically taken on a computer, where you are required to solve multiple-choice questions within the given time frame. You will be provided with a set of instructions before starting the test.