Deloitte NLA Aptitude Questions and Answers: Practice Questions with Solutions – Best Guide

TL;DR Summary

Deloitte NLA aptitude questions help candidates practise the mathematical and logical reasoning skills commonly assessed in placement tests. Important practice areas include percentages, ratios, averages, profit and loss, time and work, number series, coding-decoding, directions, and blood relations. To prepare, solve questions without looking at the answers first, understand the reasoning behind every solution, and practise under timed conditions. The questions below are original practice examples, not verified questions from a previous Deloitte examination. Since recruitment assessments can change, check the instructions and test pattern provided for your specific application before preparing.

What Should You Know Before Practising Deloitte NLA Aptitude Questions?

Deloitte NLA aptitude questions are useful practice material for students and freshers preparing for recruitment assessments. The general aptitude section typically focuses on numerical problem-solving and logical reasoning, although the exact assessment format may vary by hiring programme and recruitment cycle.

Preparing with solved examples helps you understand question patterns, select the right formulas, and avoid common calculation errors. This guide includes practice questions, detailed solutions, shortcuts, and a preparation strategy for beginners.

What Is the Deloitte NLA General Aptitude Test?

The Deloitte National Level Assessment (NLA) is a recruitment assessment associated with certain hiring opportunities. Depending on the programme, candidates may encounter aptitude, language, technical, or coding assessments.

The general aptitude component evaluates how effectively you interpret information, identify patterns, and solve numerical or logical problems. Practising Deloitte NLA aptitude questions can help you develop these skills before your assessment.

What Does the General Aptitude Section Test?

The main areas worth Deloitte NLA aptitude questions practising include:

• Quantitative aptitude: Percentages, ratios, averages, profit and loss, and time and work.
• Logical reasoning: Number series, coding-decoding, directions, and blood relations.
• Analytical thinking: Identifying patterns, evaluating conditions, and eliminating incorrect options.
• Problem-solving speed: Reaching accurate answers without spending too long on a single question.

The exact topics and number of questions are not guaranteed to remain the same for every recruitment drive.

What Is the Deloitte NLA Aptitude Questions Test Pattern?

For Deloitte NLA aptitude questions , some third-party preparation resources report a combined quantitative and logical reasoning section. However, published descriptions can differ, and they should not be treated as an official, universal pattern. Check the instructions shared with you by the recruiting team for the applicable sections, timing, and marking rules.

Important Topics to Prepare for the Deloitte NLA Aptitude Questions Test

Candidates preparing for the Deloitte NLA aptitude test should focus on quantitative aptitude and logical reasoning. Practising these topics can help improve calculation speed, accuracy, and problem-solving skills.

Deloitte Quantitative Aptitude Questions and Answers

Deloitte NLA aptitude questions: Quantitative aptitude tests your ability to apply basic mathematical concepts to short problems. The following Deloitte quantitative aptitude practice questions include solutions so that you can understand the method rather than memorize answers.

Question 1: Percentage Increase

Question: The price of a product is ₹800. Its price increases by 15%. What is the new price?

A. ₹880 B. ₹900 C. ₹920 D. ₹940

Correct answer: C. ₹920

Solution:

Percentage increase = 15% of ₹800.

15100×800=₹120\frac{15}{100}\times800=₹12010015×800=₹120

New price = Original price + Increase.

₹800+₹120=₹920₹800+₹120=₹920₹800+₹120=₹920

Shortcut: For a 15% increase, multiply the original amount by 1.15.

800×1.15=₹920800\times1.15=₹920800×1.15=₹920

Question 2: Ratio and Proportion

Question: The ratio of the monthly salaries of A and B is 3:5. If their combined salary is ₹40,000, what is B’s salary?

A. ₹15,000 B. ₹20,000 C. ₹25,000 D. ₹30,000

Correct answer: C. ₹25,000

Solution:

Total ratio units = 3 + 5 = 8.

Value of one unit:

40000÷8=₹5,00040000\div8=₹5,00040000÷8=₹5,000

B’s salary represents five units.

5×5000=₹25,0005\times5000=₹25,0005×5000=₹25,000

Shortcut: Divide the total amount by the sum of the ratio values, then multiply by the required person’s ratio value.

Question 3: Average

Question: The average of five numbers is 24. If four numbers add up to 88, what is the fifth number?

A. 28 B. 30 C. 32 D. 34

Correct answer: C. 32

Solution:

Total of five numbers:

5×24=1205\times24=1205×24=120

Fifth number:

120−88=32120-88=32120−88=32

The key is to calculate the total before finding the missing number.

Question 4: Profit and Loss

Question: A shopkeeper buys a bag for ₹1,200 and sells it for ₹1,500. What is the profit percentage?

A. 20% B. 25% C. 30% D. 35%

Correct answer: B. 25%

Solution:

Profit = Selling price − Cost price.

1500−1200=₹3001500-1200=₹3001500−1200=₹300

Profit percentage:

3001200×100=25%\frac{300}{1200}\times100=25\%1200300×100=25%

Remember that profit percentage is normally calculated on the cost price, not the selling price.

Question 5: Time and Work

Question: A can complete a task in 10 days, while B can complete the same task in 15 days. How long will they take to complete it together, assuming a constant work rate?

A. 5 days B. 6 days C. 8 days D. 12 days

Correct answer: B. 6 days

Solution:

A’s one-day work = 1/101/101/10.

B’s one-day work = 1/151/151/15.

Combined one-day work:

110+115=3+230=16\frac{1}{10}+\frac{1}{15} =\frac{3+2}{30}=\frac{1}{6}101+151=303+2=61

Therefore, they complete the task in 6 days.

Shortcut: For two workers completing the same task in aaa and bbb days, the combined time is:

a×ba+b\frac{a\times b}{a+b}a+ba×b

Question 6: Time, Speed, and Distance

Question: A car travels at 60 km/h for 2.5 hours. How far does it travel?

A. 120 km B. 135 km C. 150 km D. 180 km

Correct answer: C. 150 km

Solution:

Distance = Speed × Time.

60×2.5=150 km60\times2.5=150\text{ km}60×2.5=150 km

Use consistent units when solving distance questions. If speed is in kilometres per hour, time should be in hours.

Question 7: Simple Interest

Question: What is the simple interest on ₹5,000 at 8% per annum for two years?

A. ₹400 B. ₹600 C. ₹800 D. ₹1,000

Correct answer: C. ₹800

Solution:

The formula for simple interest is:

SI=P×R×T100SI=\frac{P\times R\times T}{100}SI=100P×R×T

Here, P=5000P=5000P=5000, R=8R=8R=8, and T=2T=2T=2.

SI=5000×8×2100=₹800SI=\frac{5000\times8\times2}{100}=₹800SI=1005000×8×2=₹800

Shortcut: At 8%, the annual interest on ₹5,000 is ₹400. For two years, it is ₹800.

Question 8: Number Properties

Question: What is the smallest positive number divisible by both 12 and 18?

A. 24 B. 30 C. 36 D. 48

Correct answer: C. 36

Solution:

Find the least common multiple (LCM).

• Multiples of 12: 12, 24, 36, 48, …
• Multiples of 18: 18, 36, 54, …

The smallest common multiple is 36.

Practice LCM and highest common factor (HCF) questions because they help build number sense and support other mathematical problems.

Question 9: Percentage Decrease

Question: A product costs ₹2,000. The seller offers a discount of 20%. What is the selling price after the discount?

A. ₹1,400 B. ₹1,500 C. ₹1,600 D. ₹1,800

Correct answer: C. ₹1,600

Solution:

Discount:

20100×2000=₹400\frac{20}{100}\times2000=₹40010020×2000=₹400

Selling price:

2000−400=₹1,6002000-400=₹1,6002000−400=₹1,600

Shortcut: A 20% discount means you pay 80% of the original price.

Question 10: Ages

Question: A father is three times as old as his son. Their combined age is 48 years. How old is the son?

A. 10 years B. 12 years C. 14 years D. 16 years

Correct answer: B. 12 years

Solution:

Let the son’s age be xxx.

The father’s age is 3x3x3x.

x+3x=48x+3x=48x+3x=48

4x=484x=484x=48

x=12x=12x=12

Therefore, the son is 12 years old, and the father is 36.

Deloitte Reasoning Questions and Answers

Logical reasoning questions assess how well you identify patterns, follow rules, and interpret relationships. Practising Deloitte reasoning questions regularly can help you become more systematic when solving unfamiliar problems.

Question 11: Number Series

Question: Find the missing number:

3, 7, 13, 21, 31, ?

A. 39 B. 41 C. 43 D. 45

Correct answer: C. 43

Solution:

Calculate the differences between consecutive numbers:

• 7 − 3 = 4
• 13 − 7 = 6
• 21 − 13 = 8
• 31 − 21 = 10

The differences increase by 2 each time. The next difference is 12.

31+12=4331+12=4331+12=43

Question 12: Coding-Decoding

Question: If CAT is coded as DBU by shifting every letter one position forward in the alphabet, how will DOG be coded?

A. EPH B. EOG C. FPH D. DPH

Correct answer: A. EPH

Solution:

Shift each letter one position forward:

• D → E
• O → P
• G → H

Therefore, DOG becomes EPH.

Tip: Check whether every letter follows the same rule before selecting an answer. Some coding questions use alternating shifts or reverse alphabetical positions.

Question 13: Direction Sense

Question: A person walks 5 metres north, turns right, and walks 4 metres. In which direction is the person facing now?

A. North B. South C. East D. West

Correct answer: C. East

Solution:

The person initially faces north. A right turn from north points east.

The final direction is east. The distance travelled does not affect the answer because the question asks for the direction faced, not the final position.

Question 14: Blood Relations

Question: Riya says, “Aman is the son of my mother’s only daughter.” If Riya is her mother’s only daughter, how is Aman related to Riya?

A. Brother B. Son C. Nephew D. Cousin

Correct answer: B. Son

Solution:

Riya’s mother’s only daughter is Riya herself. Aman is the son of Riya.

Therefore, Aman is Riya’s son.

Tip: Translate family relationships one step at a time rather than guessing from the full sentence.

Question 15: Odd One Out

Question: Which number does not belong in the group?

A. 16 B. 25 C. 36 D. 48

Correct answer: D. 48

Solution:

16 = 424^242

25 = 525^252

36 = 626^262

48 is not a perfect square.

Therefore, 48 is the odd one out.

Question 16: Logical Ordering

Question: Five people are standing in a line. P is ahead of Q, Q is ahead of R, and R is ahead of S. Which person must be ahead of S?

A. Only P B. Only Q C. P, Q, and R D. S

Correct answer: C. P, Q, and R

Solution:

The given order is:

P → Q → R → S

P, Q, and R are all ahead of S. The position of the fifth person does not change this relationship.

Question 17: Letter Series

Question: Find the next letter:

A, C, F, J, O, ?

A. S B. T C. U D. V

Correct answer: C. U

Solution:

Convert the letters into their alphabet positions:

• A = 1
• C = 3
• F = 6
• J = 10
• O = 15

The increments are +2, +3, +4, and +5. The next increment is +6.

Position 15 + 6 = 21, which corresponds to U.

Question 18: Syllogism

Question: Consider the statements:

• All analysts are employees.
• Some employees are managers.

Conclusion: Some analysts are managers.

Is the conclusion definitely true?

A. Yes B. No, it does not necessarily follow C. All managers are analysts D. All employees are analysts

Correct answer: B. No, it does not necessarily follow

Solution:

The first statement says that every analyst is an employee. The second says that some employees are managers.

However, neither statement establishes that analysts belong to the group of managers. The conclusion may be true in a particular situation, but it is not guaranteed by the statements.

This distinction is important in logical reasoning: choose only conclusions that follow from the information provided.

Mixed Practice Questions

Use this short practice set to check whether you can apply the concepts without reading the explanations first. These additional Deloitte NLA aptitude questions and answers are original exercises for revision.

Question 19: Combined Work

Question: A can complete a task in 12 days, and B can complete it in 6 days. How many days will they take together?

A. 3 days B. 4 days C. 6 days D. 9 days

Answer: B. 4 days

Explanation: Combined work per day is 1/12+1/6=3/12=1/41/12+1/6=3/12=1/41/12+1/6=3/12=1/4. Therefore, the task takes 4 days.

Question 20: Percentage Calculation

Question: A student answers 36 out of 45 questions correctly. What percentage of the questions did the student answer correctly?

A. 75% B. 80% C. 85% D. 90%

Answer: B. 80%

Explanation:

3645×100=80%\frac{36}{45}\times100=80\%4536×100=80%

Question 21: Number Pattern

Question: Find the next number:

2, 6, 18, 54, ?

A. 108 B. 126 C. 162 D. 216

Answer: C. 162

Explanation: Each number is multiplied by 3 to obtain the next number. Therefore, 54×3=16254\times3=16254×3=162.

Question 22: Direction and Distance

Question: A person walks 6 metres east and then 8 metres north. What is the shortest distance from the starting point?

A. 8 metres B. 10 metres C. 12 metres D. 14 metres

Answer: B. 10 metres

Explanation: The movements form a right-angled triangle.

d=62+82​

d=36+64d=\sqrt{36+64}d=36+64​

d=100=10d=\sqrt{100}=10d=100​=10

Answer: 10 units

This means the shortest distance between the starting point and the final position is 10 units.

Question 23: Ratio

Question: Divide ₹720 between A and B in the ratio 5:3. What is B’s share?

A. ₹270 B. ₹300 C. ₹360 D. ₹450

Answer: A. ₹270

Explanation: Total units = 5 + 3 = 8. Each unit is worth ₹720 ÷ 8 = ₹90. B receives 3×₹90=₹2703\times₹90=₹2703×₹90=₹270.

Question 24: Coding-Decoding

Question: If each letter is shifted one position forward, how is SUN coded?

A. TVO B. TUN C. SVP D. UVO

Answer: A. TVO

Explanation: S becomes T, U becomes V, and N becomes O. The code is TVO.

Quick Answer Key

Self-assessment: Review every incorrect answer and identify whether the error came from a formula, a calculation, a misunderstood condition, or a rushed decision. This is more useful than simply repeating the same questions.

How to Prepare for the Deloitte NLA aptitude questions Test

A structured routine can help you prepare without spending all your time on topics you already understand. Use the following approach while practising Deloitte NLA aptitude questions.

Step 1: Understand the Assessment Instructions

Start by reading the recruitment email or assessment instructions. Identify the sections included, total duration, calculator rules, marking scheme, and any specific guidelines.

Do not rely exclusively on a practice website for the latest test pattern. Third-party preparation pages can provide useful examples, but your assessment instructions should guide your preparation.

Step 2: Revise the Basic Formulas

Make a one-page formula sheet covering:

• Percentages and percentage change
• Ratios and proportions
• Averages
• Profit, loss, and discounts
• Simple interest
• Time and work
• Speed, distance, and time
• LCM and HCF

For reasoning, revise number patterns, alphabet positions, coding rules, directions, blood relations, and basic logical deductions.

Step 3: Practise One Topic at a Time

Avoid switching between unrelated questions before understanding the basics. For example, practise five percentage questions, check the solutions, and then move to a slightly more difficult set.

Once you can solve the questions accurately, combine different topics. Mixed practice helps you recognize which method a question requires.

Step 4: Introduce Timed Practice

Begin with accuracy rather than speed. After you understand a question type, use a timer to practise solving similar problems efficiently.

If a question takes too long, mark it for review and continue when the assessment rules allow. Always follow the actual test’s navigation and submission instructions.

Step 5: Review Every Incorrect Answer

Maintain a simple mistake log with three columns:

This review makes your preparation more focused because it targets recurring errors.

Along with practising Deloitte NLA aptitude questions, candidates should also prepare for the interview round by reviewing common questions and learning about the Deloitte NLA interview experience .

Real-World Examples

General aptitude skills are useful beyond recruitment tests. They also support everyday numerical reasoning and workplace decisions.

Example 1: Quantitative Aptitude in Consulting

Imagine a consulting team reviewing the monthly expenses of a retail business. The team needs to compare costs across branches, calculate percentage changes, and identify which branch exceeded its budget.

Percentage calculations, averages, and ratios help the team interpret the data accurately. These are the same fundamental mathematical skills practised in Deloitte NLA aptitude questions.

Example 2: Logical Reasoning in Business Operations

Consider a technology support team that must prioritize customer requests according to urgency, service commitments, and available staff.

Logical reasoning helps team members follow conditions consistently, identify dependencies, and decide which tasks should be handled first. Practising structured reasoning questions develops similar problem-solving habits.

Common Mistakes to Avoid

Even when you understand the topic, small errors can affect your performance. Watch out for these common mistakes while solving Deloitte aptitude questions.

1. Memorizing formulas without understanding them: You may choose the wrong formula when a question is worded differently. Understand what each formula calculates and practise it with different examples.

2. Rushing through calculations: Small arithmetic errors can turn a correct method into a wrong answer. Check your calculations and units before selecting an option.

3. Ignoring the exact question: Some questions ask for the final direction, while others ask for distance or position. Identify what is being asked before calculating.

4. Assuming a pattern too early: A number series may initially appear to follow a simple rule. Check all the terms before deciding which pattern applies.

5. Practising without reviewing mistakes: Attempting many questions is less useful if you keep repeating the same errors. Record incorrect answers and revisit those concepts during your next practice session.

Prepare for Placement Assessments with HCL GUVI

Building aptitude skills takes consistent practice, clear explanations, and a structured learning routine. Along with practising general aptitude questions, strengthen your broader placement readiness through communication practice, technical fundamentals, and problem-solving exercises relevant to your target role.

Explore HCL GUVI courses  and career-oriented programmes  to find learning resources that match your current skill level and preparation goals. Choose resources based on the skills you need to develop rather than enrolling in a programme solely because it mentions a particular employer. 

Conclusion

Preparing for Deloitte NLA aptitude questions becomes more manageable when you understand the concepts behind each answer. Start with percentages, ratios, averages, time and work, and basic logical reasoning before moving to mixed practice sets. Use the worked solutions in this guide to identify weak areas, revise formulas, and build accuracy through regular practice. Remember that the exact recruitment assessment may vary, so follow the instructions provided for your application. Once you are comfortable with the fundamentals, move on to timed exercises and broader placement preparation to strengthen your numerical, reasoning, communication, and technical skills.

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