Aptitude questions for Infosys form an important part of the recruitment process because they evaluate logical thinking, problem-solving ability, and time management skills. Aptitude round often determines whether a candidate progresses to the next round.
Many candidates in Singapore assume the aptitude test is easy to manage. However, limited time, question variety, and accuracy pressure make the round more challenging than expected. The test is usually not about advanced theory; rather, the focus is on applying concepts quickly, accurately, and efficiently.
As competition for technical and corporate roles continues to increase, aptitude preparation has become even more important across the industry. This guide covers the top 60 Infosys aptitude questions with answers, along with preparation strategies and common mistakes candidates should avoid.
Understanding Aptitude Questions for Infosys
Aptitude questions for Infosys are designed to check how quickly and accurately you can solve problems. These are not theory-based questions. Rather than this, they measure how you perform under stress.
It must be understood that through this phase, the firm filters those candidates who are capable of handling actual problem-solving scenarios. These include logical and quantitative questions, and sometimes verbal questions as well.
However, what is important to understand is that the difficulty level involved here is generally medium to average. Many times, candidates know the concept but fail to apply it quickly.
This is why preparation for aptitude questions for Infosys is less about memorising formulas and more about practising application.
Read Also: Infosys Company Interview Questions and Answers: Complete Preparation Guide
Aptitude Questions Pattern for Infosys Exam
The aptitude questions for Infosys exam consist of many sections, with each section testing skills in different areas. The exact pattern may vary depending on the role and recruitment process.
Here is a table for a better understanding:
| Section | What It Tests | Difficulty Level |
| Quantitative Aptitude | Maths, calculations, logic | Moderate |
| Logical Reasoning | Patterns, sequences, puzzles | Moderate |
| Verbal Ability | English comprehension | Easy to Moderate |
| Data Interpretation | Charts, graphs, analysis | Moderate |
Candidates have a limited time for each section. So, speed becomes just as important as accuracy.
Many candidates spend excessive time on difficult questions and miss easier scoring opportunities later. That’s why strong time management is essential to maximise overall performance.
Aptitude Questions for Infosys
Aptitude questions for Infosys are usually framed as short problem-solving scenarios. These questions evaluate reading accuracy, calculation ability, logical interpretation, and application of concepts.
Quantitative Aptitude Questions
1. How Are Profit and Loss Questions Asked in Infosys Aptitude Tests?
A shopkeeper in Singapore marks an item at SGD 500 and offers a discount of 20% on it. After the discount, the selling price becomes SGD 400. If the shopkeeper still earns a profit of 25% on the item, what is the original cost price?
A shopkeeper in Singapore marks an item at SGD 500 and offers a discount of 20% on it. After applying for the discount, the selling price becomes SGD 400.
Even after selling the item at SGD 400, the shopkeeper still earns a profit of 25%. This means the selling price is 25% more than the original cost price.
So, when SGD 400 represents 125% of the cost price, the original cost price comes out to SGD 320.
Therefore, the original cost price of the item is SGD 320.
2. How Do You Solve Time and Work Questions in Aptitude Exams?
A can complete a piece of work in 12 days, while B can complete it in 18 days. Both work together for 4 days, after which A leaves. In how many more days will B finish the remaining work?
A and B together complete a part of the work in the first 4 days based on their combined efficiency. After A leaves, B completes the remaining portion alone. Calculating the remaining work and B’s work rate shows that B requires 6 additional days to complete the task.
B will complete the remaining work in 6 days.
3. How Are Speed and Distance Questions Asked in Infosys Tests?
A train 200 metres long crosses a platform 300 metres long in 25 seconds. Find the speed of the train. So, the total distance becomes 200 + 300, which is 500 metres.
This distance is covered in 25 seconds, which allows us to calculate speed in metres per second. Dividing 500 by 25 gives 20 m/s
To convert this into km/h, we multiply by 3.6. This gives a final speed of 72 km/h, which is the required answer.
4. How Do Ratio Questions Appear in Aptitude Rounds?
The ratio of boys to girls in a class is 3:2. If the total number of students is 30, how many girls are there in the class? Each part represents an equal number of students.
Since the total number of students is 30, each part becomes 6 when divided equally. This simplifies the calculation.
Girls represent 2 parts, so multiplying 2 by 6 gives 12. This is the number of girls in the class.
5. How Can You Solve Average Questions in Infosys Exams?
The average mark of 6 students is 70. When one student leaves, the average of the remaining 5 students becomes 65. Find the marks scored by the student who left.
The average mark of 6 students is 70, which means the total marks initially are 6 multiplied by 70. This gives 420 as the combined score.
When one student leaves, the average becomes 65 for the remaining 5 students. So, the new total becomes 5 multiplied by 65, which is 325.
The difference between the two totals represents the marks of the student who left. Subtracting gives 95 as the answer.
6. How Are Simple Interest Questions Asked in Aptitude Tests?
Simple interest is calculated using three values: principal, rate, and time. In this case, the principal is S$2000, the rate is 5%, and the time is 3 years.
Using the simple interest formula, multiply these values and divide by 100. This gives the total interest earned over the given period.
After calculation, the interest comes out to S$300. This reflects steady growth without any compounding involved.
7. How Do Compound Interest Questions Appear in Infosys Exams?
Find the amount after 2 years on SGD 1,000 compounded annually at 10% per annum.
After the first year, S$1000 becomes S$1100. This new amount will become the base for the next year.
In the second year, interest is applied again, making the final amount S$1210. This shows how compounding increases value over time.
8. How Are Mixture and Allegation Questions Asked in Aptitude Tests?
A container has 40 litres of milk. If 10 litres are removed and replaced with water twice, how much milk remains in the container?
The container initially has 40 litres of pure milk. When 10 litres are removed, only 30 litres of milk remain in the container.
Water is then added to bring the volume back to 40 litres, which dilutes the mixture. This process changes the proportion of milk and water.
Repeating the process again further reduces the milk content. After the complete calculation, the milk left is 22.5 litres.
9. How Do You Solve Average Speed Questions in Infosys Placement Tests?
A person travels the same distance at speeds of 40 km/h and 60 km/h. Find the average speed for the entire journey.
When equal distances are covered at different speeds, the average speed cannot be calculated by simply adding the two speeds and dividing by 2. This is because more time is spent travelling at the slower speed.
To calculate the correct average speed, multiply the two speeds together and then multiply the result by 2. After that, divide the value by the sum of the two speeds.
First, multiply 40 and 60, which gives 2400.
Then multiply 2400 by 2, giving 4800.
Now add the two speeds: 40 + 60 = 100.
Finally, divide 4800 by 100.
4800 ÷ 100 = 48
The average speed for the journey is 48 km/h.
10. How Are Percentage Questions Asked in Aptitude Exams?
40% of a number is SGD 200. Find the original number.
If 40% of a number equals SGD 200, it means a part of the original value is already known. To find the complete value, first convert 40% into decimal form, which becomes 0.4.
Now represent the unknown number as x.
This gives the equation:
0.4 × x = 200
To find x, divide 200 by 0.4.
200 ÷ 0.4 = 500
The original number is SGD 500.
11. How Do Discount Questions Appear in Infosys Aptitude Rounds?
An item priced at SGD 1,000 is sold with a discount of 15%. Find the final selling price.
A discount of 15% on SGD 1,000 means the reduction amount is SGD 150. Subtracting the discount from the original price gives the final amount paid by the customer.
SGD 1,000 − SGD 150 = SGD 850
The final selling price is SGD 850.
12. How Are Percentage Increase Questions Asked in Tests?
The value increases from 2 parts to 3 parts. Find the percentage increase.
The value increases from 2 parts to 3 parts, which means there is a growth of 1 part. This increase needs to be compared with the original value.
The base value is 2 parts, so the increase of 1 part is half of the original. This helps in calculating percentage increases.
Multiplying by 100 gives a 50% increase. This shows how much the value has grown relative to the starting point.
13. How Do Work and Workers Questions Appear in Infosys Exams?
If 10 workers complete a task in 6 days, how many days will 5 workers take to complete the same task?
If 10 workers complete work in 6 days, it means the work rate is fixed. Reducing the number of workers affects the time required.
When the number of workers becomes half, the work rate also reduces. This means more time is needed to complete the same task.
So, if workers reduce to 5, the time doubles to 12 days. This follows the inverse relationship between work and time.
14. How Are Time Calculation Questions Asked in Aptitude Tests?
A car travels 240 kilometres at a speed of 60 km/h. Find the total time taken for the journey.
A car travels 240 kilometres at a speed of 60 km/h. To find time, we use the formula distance divided by speed.
Dividing 240 by 60 gives the total time taken for the journey. This is a direct and straightforward calculation.
The result comes out to 4 hours. This is the total time required to complete the journey.
15. How Do You Solve Profit Percentage Questions in Infosys Tests?
The cost price of an item is SGD 500, and it is sold for SGD 650. Find the profit percentage.
First, calculate the profit by subtracting the cost price from the selling price.
SGD 650 − SGD 500 = SGD 150
Now compare the profit with the cost price and convert it into percentage.
150 ÷ 500 × 100 = 30%
The profit percentage is 30%.
Quantitative & Logical Reasoning Questions
16. How Are Profit Percentage Questions Asked in Reasoning Tests?
A trader buys an item for S$500 and sells it for S$650. What is the profit percentage?
Answer: 30%
To begin with, calculate the actual profit made on the item. The difference between the selling price and cost price is S$150, which represents the gain in this transaction.
Now, profit percentage is always calculated based on the cost price, not the selling price. So, you divide S$150 by S$500 and multiply the result by 100 to convert it into a percentage.
After completing the calculation, the result comes up to 30%. This simply means the trader earns S$30 for every S$100 invested in the item.
17. How Do Loss Percentage Questions Appear in Infosys Exams?
An item is bought for S$800 and sold for S$720. What is the loss percentage?
Answer: 10%
Start by identifying the loss amount by comparing the cost price and selling price. Here, S$800 minus S$720 gives a loss of S$80 on the transaction.
Next, calculate the loss percentage using the cost price as the base value. Divide S$80 by S$800 and multiply by 100 to express it as a percentage.
The final result comes out to 10%. This indicates that the seller lost 10% of the initial investment in this case.
18. How to Solve Ratio Simplification Questions in Aptitude Tests?
Simplify the ratio 45:60.
Answer: 3:4
To make the ratio easier to understand, we need to find a number that can divide both numbers without leaving a remainder. For the numbers 45 and 60 this number is 15.
We divide both numbers by 15. So, we get 3 from 45 and 4 from 60. This makes the ratio simpler.
The ratio is now 3:4.
19. How Are Average Calculation Questions Asked in Infosys Placement Tests?
Find the average of the first five even numbers.
Answer: 6
Begin by listing the first five even numbers, which are 2, 4, 6, 8, and 10. Add these numbers together, you will get a total sum of 30.
Now we want to find the average of these numbers. To do this, we divide the sum of the even numbers by the number of even numbers we have, which is 5.
This calculation gives us the value of even numbers.
When we do math, the average of the numbers comes out to be 6.
This average of 6 is the value around which all the even numbers are spread out.
20. How Do Percentage Calculation Questions Appear in Exams?
Find 25% of S$480.
Answer: S$120
To solve this problem easily, you need to remember that 25 percent is the same as one-fourth. So, you do not have to use a formula; you can just divide S$480 by 4.
When you do this, S$480 divided by 4 is S$120. This is a way to find the percentage value you need.
Using shortcuts like this is really helpful when you are taking exams. It helps you save time. It also helps you avoid making mistakes when you are doing calculations.
21. How Are Seating Arrangement Questions Asked in Infosys Reasoning Tests?
Six people A, B, C, D, E, and F are sitting in a row. A is not at either end, B is to the right of A, and C is at one end. Who sits at the extreme right?
Answer: B
Start by placing C at one of the ends since that position is clearly defined. Then place A somewhere in the middle because A cannot sit at either end.
Now position B immediately to the right of A, as per the given condition. After that, place D, E, and F in the remaining positions logically.
Once all conditions are satisfied, B ends up at the extreme right. Drawing a simple layout usually makes these puzzles easier to solve.
22. How Do Coding-Decoding Questions Appear in Aptitude Exams?
In a code, CAT is written as DBU. How is DOG written?
Answer: EPH
Observe the pattern carefully in the given example. Each letter in CAT is shifted one position forward in the alphabet to form DBU.
Applying the same logic to DOG, shift each letter forward by one position. D becomes E, O becomes P, and G becomes H.
So, the coded form of DOG becomes EPH. These questions test pattern recognition and attention to detail.
23. How Are Number Series Questions Asked in Infosys Tests?
Find the next number in the series: 2, 6, 7, 21, 22, ?
Answer: 66
Start by looking at how the numbers are related; don’t rush to conclusions. The sequence goes back and forth between multiplying and adding it’s not really clear at first.
If you observe the pattern carefully, 2 becomes 6 when multiplied by 3. Then 1 is added to 6, which gives 7.
This pattern keeps going with 7 turning into 21 and then 22. Using the idea 22 is multiplied by 3 to get 66.
These kinds of patterns that go back and forth are pretty common in aptitude tests.
24. How Do Direction Sense Questions Appear in Reasoning Rounds?
A person walks 10 metres north, then 5 metres east, and then 10 metres south. How far is he from the starting point?
Answer: 5 metres
Divide the movement into various steps rather than attempting to visualise the entire thing. The 10 metres of northward motion and another 10 metres to the south would neutralise the upward motion altogether.
This implies that he is now at the same horizontal position from which he started off. The only thing left is to go 5 metres to the east.
Hence, his displacement from the starting point will be 5 metres only. A simple drawing of the motion can always make such questions simpler.
25. How Are Blood Relation Questions Asked in Infosys Exams?
Ravi is the son of Meena. Meena is the sister of Karan. How is Karan related to Ravi?
Answer: Uncle
Start by looking at the relationships mentioned in the question. Ravi is the son of Meena, so Meena is Ravi’s mother.
Now Meena is the sister of Karan, so Karan is Meena’s brother. This means Karan is related to Ravi.
Karan is the brother of Ravi’s mother. which makes Karan Ravi’s uncle.
These questions are easier to understand when you look at the relationships one by one.
26. How Do Odd One Out Questions Appear in Aptitude Tests?
Pen, Pencil, Eraser, Paper — which one does not belong to the group?
Answer: Paper
Consider the purpose of the objects and not only their classification into categories. Pen, pencil, and rubber are writing aids which are used to write and erase what is written.
As opposed to these items, paper is not an aid but a surface on which one writes.
This distinction in function determines that paper is a special object among the rest of the list. This kind of question tests logic in grouping objects and not memory.
27. How Are Number Pattern Questions Asked in Placement Exams?
Find the next number in the series: 1, 4, 9, 16, ?
Answer: 25
Start by checking whether the numbers follow a familiar mathematical pattern. In this case, each number is a perfect square of natural numbers.
You can verify this as 1² equals 1, 2² equals 4, 3² equals 9, and 4² equals 16. This confirms a clear pattern in the sequence.
So, the next number will be 5², which is 25. Recognising such standard patterns quickly saves time during tests.
28. How Do Alphabet Series Questions Appear in Infosys Tests?
Complete the series: A C, F, J, O ?
Answer: U
Check the gaps between the letters. From A to C, I move 2 letters forward. From C to F, I move 3 letters.
Next, from F to J, I move 4 letters. From J to O, I move 5 letters. So, the gap gets bigger by one letter each time. If I follow this pattern, the next gap should be six letters.
Starting from the letter O, if I move six letters forward, I get to the letter U
These alphabet patterns are common, in alphabet-based reasoning questions, where the alphabet is used for reasoning and these kinds of patterns are often seen in alphabet-based reasoning questions, like the alphabet pattern I am seeing here with the alphabet.
29. How Are Logical Statement Questions Asked in Reasoning Exams?
All engineers are graduates. Some graduates are managers. Can we conclude that some engineers are managers?
Answer: Cannot be determined.
We know engineers are a subset of graduates. We also know some graduates are managers.
However there is no link between engineers and managers. The statements do not confirm if engineers are also managers.
We should not assume anything not given.
30. How Do Word Reversal Questions Appear in Aptitude Tests?
If “LEFT” is written in order, what will it look like?
Answer: TFEL.
Reversing a word means writing the letters from last to first. So, we take the letter T, followed by F, then E and finally L.
This forms the sequence TFEL.
Even simple questions like this test focus and accuracy under time pressure.
Verbal. Data Interpretation Questions
31. How Are Sentence Correction Questions Asked in Infosys Verbal Tests?
Identify the form: “She don’t like tea.”
Answer: She doesn’t like tea.
The subject of the sentence is “She,” which’s singular. So, it needs a verb form. In grammar, singular subjects use “does not” or “doesn’t.”
Using “don’t” with “she” is incorrect.
32. How Do Fill in the Blank Verb Form Questions Appear in Exams?
“He ___ completed his assignment before the deadline.”
Answer: Has
The sentence is about something that happened recently. This is when we use the perfect tense.
The present perfect tense is made up of “has” or “have”. The past participle of a word. Since we are talking about one person, we use “has”.
33. How Are Synonym Questions Asked in Verbal Tests?
Choose the word in meaning to “Rapid.”
Answer: Fast.
“Rapid” means something happens quickly or at a speed. “Fast” matches this meaning.
34. How Do Antonym Questions Appear in Infosys Placement Exams?
Choose the word opposite in meaning to “Scarce.”
Answer: Abundant.
“Scarce” means something that is limited or insufficient. The opposite is a word that represents plenty or excess.
“Abundant” fits this meaning.
35. How Are Sentence Improvement Questions Asked in Verbal Tests?
Correct the following sentence: “He is more taller than his brother.”
Answer: He is taller than his brother.
The sentence employs both “more” and “taller” which is double comparison. This is grammatically incorrect. The sentence should use one comparative form.
It can use “taller”. It can use ” more.
36. How Do Subject-Verb Agreement Questions Appear in Aptitude Exams?
“Each of the boys ___ present in the class.”
Answer: Is.
The key word is “Each,” which’s singular. The verb must agree with “Each,” not with the noun that follows.
37. How Are Vocabulary Meaning Questions Asked in Infosys Tests?
What does the word “Ephemeral” mean?
The word “Ephemeral” means something that does not last long.
The word “Ephemeral” is used to describe things that’re Ephemeral” like situations or experiences that are around for a short time.
38. How Do Tense-Based Fill in the Blank Questions Appear in Verbal Exams?
“He ___ playing football when it started raining.”
Answer: Was.
The sentence shows an action taking place at a particular time in the past. It implies that a continuous tense should be used in describing such an action.
For actions like these, the past continuous tense should be used, whereby the words “was” and/or “were” should be used together with a verb ending with “-ing.”
39. How Are Sentence Completion Questions Asked in Placement Tests?
“She is one of the best ___ in the team.”
Answer: Players.
“One of the best” should be used together with a noun. If you add a noun after the words “one of the best,” then you create an incorrect sentence.
Therefore, you need to combine “one of the best” with some non-noun elements.
40. How Do Spelling Check Questions Appear in Infosys Aptitude Tests?
Choose the spelling:
A) recieve
B) receive
Answer: Receive.
One common rule is “i should be used before e, except after c.” In this case the letter “c” comes before “ei “.
The correct spelling follows the exception.
Data Interpretation Questions
41. How Are Percentage Increase Questions Asked in Data Interpretation Tests?
A company’s revenue increases from S$200 thousand to S$300 thousand. What is the percentage increase in revenue?
Answer: 50 percent.
The increase in revenue is S$100 thousand, calculated by subtracting the initial value from the final value. This gives a clear idea of how much growth has occurred.
To calculate the percentage change, we will have to take into consideration this rise in relation to the initial figure. It is essential that we consider the initial figure whenever we are calculating percentage changes. It is important that we consider the base figure in any of our calculations.
By dividing S$100 thousand by the original amount and multiplying by 100, we get the percentage increase. This shows the growth in relative terms.
42. How Do Pie Chart Calculation Questions Appear in Exams?
In a pie chart, 25 percent represents marketing expenses. Total budget is S$800 thousand. What is the amount spent on marketing?
Answer: S$200 thousand.
25 Percent means one-fourth of the budget. Divide S$800 thousand by 4 to get S$200 thousand.
43. How Are Set-Based Data Interpretation Questions Asked in Placement Tests?
In a class of 50 students, 20 passed Maths, 30 passed Science and 10 passed both. How many students passed in at least one subject?
Answer: 40.
Adding 20 and 30 would double-count those 10 students. Use the formula: Total = Maths + Science − Both.
44. How Do Revenue Growth Questions Appear in Data Interpretation Rounds?
The income of an organisation goes up from S$500 million to S$650 million. By what percentage does it rise?
Answer: 30%
The increase in income is S$150 million.
To calculate how much of S$500 million that amount is, I would divide S$150 million by S$500 million.
45. How Are Percentage Decrease Questions Asked in Aptitude Tests?
A company’s expenses decrease from S$400 million to S$300 million. What is the percentage decrease?
Answer: 25 percent.
The decrease in expenses is S$100 million. This step helps you clearly identify the change.
Next, compare this decrease with the value. We divide S$100 million by S$400 million to understand how much it has reduced. This gives us a proportion of reduction.
Now we multiply the result by 100 to get a percentage. This gives 25 percent, which shows the decrease in expenses accurately with S$400 million as the base.
46. How Do Population Growth Questions Appear in Exams?
The number increases from 1000 to 1200 in a year. Find the growth rate.
Answer: 20%
The difference between 1200 and 1000 is 200. First, let us see what is the percentage increase from the total population of 1000. Hence, divide 200 by 1000.
This gives us an increase of 20 percent.
47. How Are Profit Increase Questions Asked in Data Interpretation Tests?
A company’s profit increases from S$50 thousand to S$75 thousand. What is the percentage increase in profit?
Answer: 50 percent
The difference between S$75 thousand and S$50 thousand is S$25 thousand. Next, we compare this increase with the profit of S$50 thousand. We divide S$25 thousand by S$50 thousand.
This gives a 50 percent increase in profit with S$50 thousand as the base profit.
48. How Do Product Contribution Questions Appear in Aptitude Exams?
A company has sales of S$1000 thousand. One product contributes 40 percent of S$1000 thousand. What is the sales value of that product?
Answer: S$400 thousand
To find the contribution we multiply S$1000 thousand by 0.40.
This gives S$400 thousand as the value contributed by that product.
49. How Are Attendance Percentage Questions Asked in Placement Tests?
In a class of 40 students 10 students are absent. What is the attendance percentage?
Answer: 75 percent
Firstly, 40-10 = 30 Students are present.
Now we compare 30 and 40. We divide 30 by 40. This gives 75 percent attendance.
50. How Do Salary Increase Questions Appear in Data Interpretation Rounds?
An employee’s income increases from S$50,000 to S$60,000. What is the percentage increase?
Answer: 20 percent
The difference between S$60,000 and S$50,000 is S$10,000. Next, we compare S$10,000 with S$50,000. We divide S$10,000 by S$50,000.
Therefore, the income increased by 20%.
Mixed Practice Questions
51. How Are Percentage Calculation Questions Asked in Aptitude Tests?
If 30% of a number is S$150, then you need to determine the number.
Answer: S$500
Let the number be x. Then 30% of x is S$150. We now find the value of x by dividing both sides by 0.3.
Therefore, x = 150 ÷ 0.3 = S$500.
52. How Do Profit Percentage Questions Appear in Placement Exams?
An item is sold for S$120, which was originally purchased at S$100. Calculate the profit percentage?
Answer: 20 percent
The selling price of the item is S$120. An item is bought for S$100. Therefore, the profit made on the item is S$120 – S$100 = S$20. Next, we will calculate the profit made on the item, which is S$20, with the cost of the item, which is S$100.
We will find the profit made on the item which is S$20 divided by the cost of the item, which is S$100, making the profit percentage 20 percent.
53. How Are Average Speed Questions Asked in Aptitude Rounds?
A train travels 480 km in 6 hours. What is its average speed?
Answer: 80 km/h
We use the formula for speed: distance divided by time. Now we substitute the values. We divide 480 km by 6 hours.
This gives 80 km/h.
54. How Do Number Series Questions Appear in Practice Tests?
Find the number in the sequence: 3, 9, 27 ?
Answer: 81
We observe how each number changes. Every number is multiplied by 3 to get the term.
3 Becomes 9 and 9 becomes 27.
Applying this again 27 multiplied by 3 gives 81.
55. How Are Percentage Distribution Questions Asked in Exams?
A person saves 30 percent of his income. What percentage of his income does he spend?
Answer: 70 percent
Total income is 100 percent. Out of this, 30 percent is saved.
To find the spending percentage, subtract the savings from the total income. So, 100 percent minus 30 percent gives the remaining portion.
So, 100 percent. 30 Percent = 70 percent is spent. 100 percent. 30 Percent = 70 percent is spent.
56. How Do Ratio Simplification Questions Appear in Aptitude Tests?
Simplify the 20:50 ratio.
Answer: 2:5
First, find a number that can divide both 20 and 50. 10 Works for both. Now divide each part of the ratio by 10.
This makes the ratio smaller. So 20:50 becomes 2:5.
Smaller numbers make it easier to compare things.
57. How Are Average Calculation Questions Asked in Placement Exams?
Find the average of 10, 20 and 30.
Answer: 20.
To calculate the average, first add all the numbers together.
10 + 20 + 30 = 60
Now divide the total by the number of values, which is 3.
60 ÷ 3 = 20
The average is 20.
Average-based questions are common in aptitude tests because they assess basic calculation and problem-solving skills.
58. How Do Simple Interest Questions Appear in Practice Tests?
Find the simple interest on S$500 at 10 percent for 2 years.
Answer: S$100
Start by recalling the formula for simple interest, which is (Principal × Rate × Time) divided by 100. This helps structure the calculation clearly.
Substitute the given values into the formula. Here, the principal is S$500, the rate is 10 percent, and the time is 2 years.
After calculating step by step, you get S$100 as the interest. Knowing the formula and applying it correctly ensures accuracy.
59. How Are Time Calculation Questions Asked in Aptitude Exams?
A person travels 120 km at a speed of 60 km/h. How much time does the journey take?
Answer: 2 hours
Time = Distance divided by Speed. Substituting the given values in the above formula gives 120 km divided by 60km/hr which is equal to time taken.
Time taken is two hours. Basic formulas can be used to arrive at answers quickly.
60. How Do Number Series Questions Appear in Interview Tests?
Find the next number in the series: 2, 4, 8, 16, ?
Answer: 32
Begin by identifying the pattern followed in the sequence. Each number is multiplied by 2 to get the next value.
So, 2 becomes 4, 4, becomes 8, and 8 becomes 16. Applying the same pattern again gives the next number.
Multiplying 16 by 2 gives 32. Recognising such simple patterns helps solve series questions quickly.
Practical Tips to Crack Aptitude Questions for Infosys
When it comes to Infosys aptitude questions and answers, a small change in approach can make a difference. Try not to spend much time on one question.
It is better to move on and come back to it later if you need to. Another point worth noting is accuracy. Guesswork can reduce your overall score, especially if negative marking is involved.
Also, keep your calculations simple. Rather than making lengthy calculations, make attempts at doing mental calculations whenever possible.
It is more important to be consistent than intense. Thirty to forty minutes per day can help you perform better.
Read also: 10 Proven Tips to Stay Focused in an Interview
Common Mistakes Candidates Make in Infosys Aptitude Tests
Many candidates prepare well for the Infosys aptitude test but still lose marks because of avoidable mistakes. Understanding these common errors can improve both speed and accuracy during the exam.
Ignoring Time Management
One of the biggest mistakes is spending too much time on a single question. The Infosys placement test usually includes multiple sections with limited time. Candidates should avoid getting stuck and move ahead if a question is difficult.
Skipping Basic Concepts
Some candidates focus only on shortcut tricks and ignore basic aptitude concepts. Questions from percentages, ratios, profit and loss, and logical reasoning often require conceptual clarity. Strong fundamentals help solve questions faster and with fewer errors.
Not Practicing Mock Tests
Many students prepare theory but do not attempt enough mock tests. Without practice, it becomes difficult to manage speed and pressure during the actual Infosys online assessment. Mock tests also help identify weak areas.
Making Calculation Errors
Simple calculation mistakes are common in quantitative aptitude questions. Rushing through calculations without rechecking answers can lead to unnecessary negative outcomes. Practicing mental maths and approximation techniques can reduce such errors.
Misreading Logical Reasoning Questions
In logical reasoning and puzzle-based questions, candidates often miss important conditions given in the statement. Reading the question carefully before solving is important to avoid confusion and incorrect answers.
Neglecting Verbal Ability Preparation
Some candidates focus only on quantitative aptitude and ignore verbal ability. However, grammar, reading comprehension, and vocabulary questions are also important parts of the Infosys aptitude exam pattern. Balanced preparation is necessary for overall performance.
Lack of Revision Before the Exam
Last-minute preparation without revision can create confusion during the test. Revising formulas, shortcut methods, and important concepts before the exam helps improve confidence and accuracy.
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Conclusion
Aptitude questions for Infosys are best approached through detailed, consistent practice. The key is not just solving more questions, but understanding the logic behind each solution. When you practise step by step, you improve both accuracy and speed over time.
Many candidates struggle because they focus only on shortcuts or rush through calculations under pressure. In practice, strong fundamentals and time management make a bigger difference than memorising formulas alone.
In Singapore, consistent aptitude practice, strong fundamentals, and effective time management play an important role in improving performance in Infosys recruitment assessments.
Consistent preparation also helps you recognise common question patterns across topics like percentages, reasoning, averages, and data interpretation. As your confidence improves, you become better at handling timed tests and avoiding unnecessary mistakes during the actual exam.
FAQs
This test is of average difficulty. It is not very hard, yet it requires practice.
The test includes maths, reasoning, and English questions. Common topics are percentages, time and work, series, coding, and grammar.
There is no fixed cut off. It changes every year. You need a good score in all sections.
It is the first interview round. It checks basic technical and communication skills.
Understand the basics and practise daily. Focus on accuracy and time. Stay consistent.
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