Mettl Aptitude Assessment — Questions and Answers

Question 1: Which sorting algorithm has the best average-case time complexity?

Merge Sort (Correct answer)
Selection Sort
Insertion Sort
Bubble Sort

Correct answer: Merge Sort

Merge Sort runs in O(n log n) average-case, outperforming the O(n²) algorithms.

Question 2: During a high-stakes negotiation with a client, your most valuable communication asset is:

Active listening and asking open-ended questions to understand their needs (Correct answer)
Agreeing with everything the client says to build rapport
Presenting your company's achievements upfront
Speaking confidently and at length to demonstrate expertise

Correct answer: Active listening and asking open-ended questions to understand their needs

Understanding the client's perspective through active listening leads to better negotiation outcomes.

Question 3: A 4×4 grid is divided into four 2×2 quadrants. Each quadrant contains a unique combination of shapes. The top-left has {■, ○} and the top-right has {△, ■}. If no shape repeats across a row of quadrants, what shapes are in the bottom-left?

{○, ■}
{○, △} (Correct answer)
{△, ○}
{■, △}

Correct answer: {○, △}

The bottom row must use shapes not in the top-left (■, ○) or top-right (△, ■), so the remaining pair is {○, △}.

Question 4: Which of the following is a sign of poor workplace communication?

Clear escalation paths for urgent issues
Frequent misunderstandings and duplicated effort across teams (Correct answer)
Regular structured team check-ins
Documented meeting agendas shared in advance

Correct answer: Frequent misunderstandings and duplicated effort across teams

Frequent misunderstandings and duplicated effort indicate breakdowns in information sharing.

Question 5: A line chart shows inventory levels: Week 1=500, Week 2=420, Week 3=340, Week 4=260. If the trend continues, what is the expected Week 5 inventory?

220
180 (Correct answer)
160
200

Correct answer: 180

Inventory decreases by 80 each week (500→420→340→260), so Week 5 = 260−80 = 180.

Question 6: Two trains, one 150 meters long and the other 250 meters long, are running in opposite directions on parallel tracks. The speed of the first train is 40 km/hr and the second is 50 km/hr. How long will it take for the trains to completely cross each other?

18 seconds
16 seconds (Correct answer)
12 seconds
20 seconds

Correct answer: 16 seconds

The total distance to be covered is the sum of the lengths of both trains: 150m + 250m = 400m. Since they are moving in opposite directions, their relative speed is the sum of their individual speeds: 40 km/hr + 50 km/hr = 90 km/hr. Convert the relative speed to m/s: 90 * (5/18) = 25 m/s. Time = Distance / Speed = 400m / 25 m/s = 16 seconds.

Question 7: Which data structure uses LIFO (Last In, First Out) ordering?

Deque
Queue
Stack (Correct answer)
Heap

Correct answer: Stack

A Stack follows LIFO: the last element pushed is the first one popped.

Question 8: A boat travels 12 km upstream in 3 hours and 12 km downstream in 2 hours. What is the speed of the current?

4 km/h
3 km/h
2 km/h
1 km/h (Correct answer)

Correct answer: 1 km/h

Upstream speed = 4 km/h, downstream speed = 6 km/h; current = (6 − 4) / 2 = 1 km/h.

Question 9: In the context of programming, what is the primary purpose of using a local variable inside a function?

To limit the variable's existence and accessibility to only within that function, preventing unintended side effects. (Correct answer)
To share its value with all other functions in the program.
To declare a variable that is accessible from anywhere in the code.
To retain its value even after the program has finished executing.

Correct answer: To limit the variable's existence and accessibility to only within that function, preventing unintended side effects.

Local variables are declared within a function and their scope is limited to that function. This is a fundamental principle of encapsulation that helps prevent conflicts with variables of the same name in other functions and avoids unintended modifications to data, making code more modular and easier to debug.

Question 10: A project manager notices that 20% of the team's tasks are consuming 80% of the project's time. This observation best illustrates which principle?

Parkinson's Law
The 2-minute rule
The Law of Diminishing Returns
The Pareto Principle (Correct answer)

Correct answer: The Pareto Principle

The Pareto Principle (80/20 rule) states that roughly 80% of outcomes come from 20% of inputs.

Question 11: A company's HR director says: 'Our top performers all drink coffee, so we should encourage all employees to drink coffee to improve performance.' The weakest point in this argument is:

Not all employees like coffee.
The sample of top performers may be small.
Top performance may cause coffee drinking, not the reverse—or both may share a common cause. (Correct answer)
Coffee is widely available.

Correct answer: Top performance may cause coffee drinking, not the reverse—or both may share a common cause.

The argument ignores reverse causality and confounding variables—high performers may simply have habits that include coffee without coffee causing their success.

Question 12: In a hydraulic system, if the input piston has an area of 2 cm² and the output piston has an area of 20 cm², and a force of 100 N is applied to the input, what is the output force?

100 N
200 N
1000 N (Correct answer)
10 N

Correct answer: 1000 N

Pascal's principle: Output force = Input force × (Output area / Input area) = 100 × (20/2) = 1000 N.

Question 13: Read the following passage and answer the question that follows: The proliferation of digital streaming services has fundamentally altered the landscape of the entertainment industry. Unlike traditional broadcast media, which offered a limited, scheduled selection of content, streaming platforms provide vast libraries of on-demand content. This shift has empowered consumers with unprecedented choice and control over their viewing habits. However, it has also led to market fragmentation, with numerous services competing for subscribers, each with its own exclusive content. This 'streaming wars' phenomenon can create a paradox of choice, where the sheer volume of options becomes overwhelming for the consumer. Which of the following statements best summarizes the main idea of the passage?

Streaming services offer greater consumer choice but also create challenges like market fragmentation and content overload. (Correct answer)
Digital streaming is superior to traditional broadcast media in every aspect.
The 'streaming wars' have made it impossible for consumers to find content.
Exclusive content is the only factor that determines the success of a streaming platform.

Correct answer: Streaming services offer greater consumer choice but also create challenges like market fragmentation and content overload.

The passage presents a balanced view. It highlights the benefits of streaming (unprecedented choice, on-demand content) and its drawbacks (market fragmentation, 'streaming wars', paradox of choice). Option C accurately captures both these positive and negative aspects, making it the best summary. The other options are either too extreme or focus on only a single detail of the passage.

Question 14: Statement: 'Whenever it rains, the match is cancelled.' It did not rain today. What can we conclude?

Nothing can be concluded about the match (Correct answer)
The match was played
The match was cancelled
It will rain tomorrow

Correct answer: Nothing can be concluded about the match

The conditional only guarantees cancellation when it rains; no rain does not guarantee the match was played.

Question 15: What is 'cloud computing' in the context of IT infrastructure?

A type of network cable used in data centers
A weather monitoring system for IT equipment
Software installed locally on personal computers
Delivering computing services (servers, storage, software) over the internet on-demand (Correct answer)

Correct answer: Delivering computing services (servers, storage, software) over the internet on-demand

Cloud computing delivers IT resources (servers, storage, databases, software) over the internet, allowing on-demand access without owning physical hardware.

Question 16: Two strings of text are shown. Select the statement that accurately describes the difference: String 1: 'Authorization_Token_2024_v2' String 2: 'Authoriz4tion_Token_2024_v2'

String 2 replaces the letter 'a' with the digit '4' (Correct answer)
String 2 has an extra character
String 1 is missing an underscore
There is no difference

Correct answer: String 2 replaces the letter 'a' with the digit '4'

String 2 uses the digit '4' in place of the letter 'a' in 'Authorization,' making them different.

Question 17: In binary, what is the decimal value of 1101?

11
14
12
13 (Correct answer)

Correct answer: 13

1101 in binary = 1×8 + 1×4 + 0×2 + 1×1 = 8 + 4 + 0 + 1 = 13.

Question 18: What is the least common multiple (LCM) of 18, 24, and 36?

36
72 (Correct answer)
144
108

Correct answer: 72

Prime factorization gives LCM = 2³ × 3² = 72.

Question 19: A trend line on a graph shows sales increasing by a constant $5,000 per month. If January sales were $20,000, what would May sales be?

$35,000
$30,000
$40,000 (Correct answer)
$45,000

Correct answer: $40,000

January + 4 increments of $5,000 = $20,000 + $20,000 = $40,000.

Question 20: Read the passage: 'The legislation was enacted with the ostensible purpose of protecting consumers, but critics argued it primarily benefited large corporations.' What does 'ostensible' mean?

Apparent but possibly not the real reason (Correct answer)
Legally binding
True and actual
Hidden and secret

Correct answer: Apparent but possibly not the real reason

'Ostensible' describes something that appears to be true on the surface but may not reflect the actual reason.

Question 21: Which behavior best demonstrates a strong service orientation toward internal customers?

Completing requests only when formally submitted
Prioritizing external customers exclusively
Anticipating colleagues' needs and providing support proactively (Correct answer)
Responding to requests based on personal preference

Correct answer: Anticipating colleagues' needs and providing support proactively

Proactively supporting internal stakeholders builds strong cross-functional relationships.

Question 22: Find the missing number in the series: 5, 11, 24, 51, 106, ___

223
212
217 (Correct answer)
199

Correct answer: 217

The pattern is to multiply the current number by 2 and then add an incrementally increasing number, starting from 1. 5 * 2 + 1 = 11 11 * 2 + 2 = 24 24 * 2 + 3 = 51 51 * 2 + 4 = 106 106 * 2 + 5 = 217

Question 23: Fill in the blank: 'The committee will _______ the proposal before making a final decision.'

deliberate (Correct answer)
deliberated
deliberating
deliberates

Correct answer: deliberate

After 'will,' the base form of the verb (deliberate) is required.

Question 24: A colleague receives critical feedback in a team meeting and immediately becomes defensive. Which EI skill is this person most lacking?

Self-awareness
Emotional regulation (Correct answer)
Empathy
Social skills

Correct answer: Emotional regulation

Emotional regulation is the ability to manage one's emotional reactions, especially in challenging situations like receiving criticism.

Question 25: Monthly website traffic data: Jan=10K, Feb=12K, Mar=9K, Apr=15K, May=18K. Which month recorded the sharpest month-over-month decline?

April to May
January to February
March to April
February to March (Correct answer)

Correct answer: February to March

Feb to Mar dropped by 3K (from 12K to 9K), which is the only decline in the dataset.

Question 26: Choose the word most similar in meaning to 'DILIGENT'.

Lazy
Industrious (Correct answer)
Negligent
Careless

Correct answer: Industrious

'Diligent' means showing careful and persistent work or effort. 'Industrious' means hardworking — the closest synonym.

Question 27: A salesperson earns a base salary of $2,500/month plus 4% commission on sales. If she earned $4,100 in a month, what were her total sales?

$45,000
$41,000
$40,000 (Correct answer)
$35,000

Correct answer: $40,000

Commission = $4,100 − $2,500 = $1,600; sales = $1,600 ÷ 0.04 = $40,000.

Question 28: Identify the figure of speech in: 'The wind whispered through the trees.'

Hyperbole
Simile
Metaphor
Personification (Correct answer)

Correct answer: Personification

Attributing the human action of whispering to the wind is personification.

Question 29: Find the single error in: 'The committee has made it's final decision and will announce the results tomorrow.'

No error — the sentence is correct
'has made' should be 'have made'
'will announce' should be 'announces'
'it's' should be 'its' (Correct answer)

Correct answer: 'it's' should be 'its'

'It's' is a contraction meaning 'it is' (e.g., 'it is final'). The possessive form — meaning 'belonging to it' — is 'its' without an apostrophe. The sentence needs the possessive: 'its final decision.'

Question 30: What is the time complexity of binary search?

O(n²)
O(n)
O(n log n)
O(log n) (Correct answer)

Correct answer: O(log n)

Binary search halves the search space with each comparison, giving O(log n) time complexity.

Question 31: What does a 'scatter plot' primarily show?

Time-series trends.
Correlation between two variables. (Correct answer)
Part-to-whole relationships.
Comparison of categories.

Correct answer: Correlation between two variables.

A scatter plot is a graphical representation that displays individual data points on a two-dimensional graph. Each axis represents a different variable, allowing for a visual assessment of how changes in one variable relate to changes in the other. This visual pattern helps to identify the presence, direction, and strength of a correlation between the two variables.

Question 32: Five people A, B, C, D, E are sitting in a row. B is to the right of A, D is to the left of E, and C is between B and D. Who is sitting in the middle?

C (Correct answer)
B
D
E

Correct answer: C

Working through constraints: A-B (B right of A), D-E (D left of E), C between B and D. Arrangement: A, B, C, D, E. C is in the middle (3rd position).

Question 33: Which of the following best describes 'upward communication' in an organization?

Employees sharing feedback, concerns, or ideas with management (Correct answer)
Managers issuing directives to their teams
Peers exchanging information horizontally
External stakeholders communicating with internal staff

Correct answer: Employees sharing feedback, concerns, or ideas with management

Upward communication flows from lower-level employees to higher-level management.

Question 34: A company's costs are split: 55% labor, 30% materials, 15% overhead. If total costs are $800,000, how much is spent on materials?

$120,000
$240,000 (Correct answer)
$200,000
$160,000

Correct answer: $240,000

30% of $800,000 = 0.30 × 800,000 = $240,000.

Question 35: Identify the main purpose of a topic sentence in a paragraph:

To introduce the central idea of the paragraph (Correct answer)
To transition between two unrelated ideas
To provide statistical evidence for the argument
To summarize the entire essay

Correct answer: To introduce the central idea of the paragraph

A topic sentence states the main idea of a paragraph, guiding the reader on what the paragraph will discuss.

Question 36: Select the correct meaning of the idiom: 'To bite the bullet'.

To take a significant financial risk
To endure a painful situation with courage (Correct answer)
To challenge someone aggressively
To make a rash decision

Correct answer: To endure a painful situation with courage

'To bite the bullet' means to endure a painful or difficult situation stoically rather than avoiding it.

Question 37: ABCD is a sequence where each letter's position value doubles: A=1, B=2, D=4, H=?

I
G
J
H (Correct answer)

Correct answer: H

The sequence doubles position values: 1, 2, 4, 8 — the 8th letter of the alphabet is H.

Question 38: What is the key difference between 'verification' and 'validation' in test design?

Verification tests the final product; validation tests individual components
Verification checks that the product is built correctly against specifications; validation checks that the right product was built for the user's needs (Correct answer)
Verification is done by developers; validation is done by clients only
There is no difference in modern agile testing

Correct answer: Verification checks that the product is built correctly against specifications; validation checks that the right product was built for the user's needs

Verification ensures conformance to specifications (are we building it right?), while validation ensures fitness for purpose (are we building the right thing?).

Question 39: How do you handle a situation where your personal values conflict with a company directive?

Comply silently and never raise the concern
Quit immediately without discussion
Raise your concern through appropriate channels while complying with current policy (Correct answer)
Ignore company policy and act on personal values

Correct answer: Raise your concern through appropriate channels while complying with current policy

Voicing concerns through proper channels respects organizational structure while asserting your values.

Question 40: In Goleman's EI framework, 'motivation' refers primarily to:

Completing tasks under deadline pressure
An intrinsic drive to achieve goals beyond external expectations (Correct answer)
The ability to motivate other people on your team
Being motivated by external rewards such as salary

Correct answer: An intrinsic drive to achieve goals beyond external expectations

In Goleman's model, motivation is an internal drive to pursue goals for their own sake, not for external rewards.

Question 41: Which of the following statements about immutable objects is correct?

They are always slower than mutable objects
Their state cannot be modified after creation (Correct answer)
They cannot be used as dictionary keys
Their value can be changed after creation

Correct answer: Their state cannot be modified after creation

Immutable objects have a fixed state that cannot be altered after they are created.

Question 42: Which component of emotional intelligence involves recognizing your own emotional triggers and how they affect your behavior?

Social skills
Motivation
Empathy
Self-awareness (Correct answer)

Correct answer: Self-awareness

Self-awareness is the ability to recognize your own emotions, strengths, weaknesses, and how your emotions affect others.

Question 43: Six people are seated in a circle. In how many ways can they be arranged?

120 (Correct answer)
360
60
720

Correct answer: 120

Circular permutations of n people = (n−1)! = 5! = 120.

Question 44: You are asked to complete a task outside your area of expertise. What is the best first step?

Complete it without research to save time
Refuse because it is outside your job description
Accept, then seek resources, training, or mentorship to complete it well (Correct answer)
Delegate it entirely without informing the requester

Correct answer: Accept, then seek resources, training, or mentorship to complete it well

Accepting the challenge while seeking support demonstrates a growth mindset.

Question 45: Which of the following is an example of 'time blocking'?

Working on whatever task comes to mind first
Making a to-do list without deadlines
Multitasking throughout the day
Scheduling '2:00-3:30 PM: Project Report Draft' in your calendar (Correct answer)

Correct answer: Scheduling '2:00-3:30 PM: Project Report Draft' in your calendar

Time blocking is a time management technique where you schedule specific blocks of time in your calendar for particular tasks or activities. By dedicating a defined period, like '2:00-3:30 PM: Project Report Draft,' you ensure that important work receives focused, uninterrupted attention. This method helps in proactive planning and adherence to a schedule.

Question 46: A data table shows three suppliers' on-time delivery rates: Supplier A=92%, B=87%, C=95%. If each handles 1,000 shipments, how many total late deliveries are there across all suppliers?

300
200
260 (Correct answer)
240

Correct answer: 260

Late deliveries: A=80, B=130, C=50; total = 80+130+50 = 260.

Question 47: The concept of 'emotional labor' is most relevant to which type of professional role?

Software engineers working independently
Logistics coordinators tracking shipments
Customer service representatives who must maintain positivity (Correct answer)
Data analysts performing statistical reviews

Correct answer: Customer service representatives who must maintain positivity

Emotional labor involves managing one's emotions as part of the job—most prominent in roles requiring sustained positive emotional display toward others.

Question 48: How many squares are in a 3×3 grid (counting all sizes)?

12
14 (Correct answer)
16
9

Correct answer: 14

There are nine 1×1, four 2×2, and one 3×3 square, totaling 14.

Question 49: Which sentence CORRECTLY uses parallel structure?

The report was thorough, accurate, and it covered all the points.
She likes swimming, to run, and cycling.
He promised to work harder, stay focused, and meet every deadline. (Correct answer)
Our goals are winning the contract, to retain clients, and growth.

Correct answer: He promised to work harder, stay focused, and meet every deadline.

Option C maintains parallel structure by using the infinitive form ('to work,' 'stay,' 'meet') consistently throughout.

Question 50: A waterfall chart shows starting cash of $100K, three positive cash inflows of $30K each, and two outflows of $25K each. What is the ending cash balance?

$130K
$160K
$150K (Correct answer)
$140K

Correct answer: $150K

Ending = $100K + 3×$30K - 2×$25K = $100K + $90K - $50K = $140K... wait: $100+$90-$50=$140K.

Question 51: Currency exchange: 1 USD = 0.92 EUR. A European company buys goods worth $75,000. How much does it cost in euros?

€69,000 (Correct answer)
€68,900
€70,500
€68,250

Correct answer: €69,000

75,000 × 0.92 = 69,000 euros.

Question 52: What is the main advantage of face-to-face communication over written communication for complex topics?

It creates a permanent record of the conversation
It removes the risk of miscommunication entirely
It allows for immediate clarification and non-verbal cues (Correct answer)
It is always faster than any written method

Correct answer: It allows for immediate clarification and non-verbal cues

Face-to-face communication enables real-time feedback and the reading of non-verbal signals.

Question 53: Identify the sentence with correct subject-verb agreement:

The team of analysts have submitted their report.
Each of the candidates are required to present.
The list of requirements has been updated. (Correct answer)
A number of issues was raised at the meeting.

Correct answer: The list of requirements has been updated.

'The list' is the subject (singular), so 'has been updated' is correct agreement.

Question 54: A cube has a volume of 125 cm³. What is the total surface area of the cube?

175 cm²
150 cm² (Correct answer)
100 cm²
125 cm²

Correct answer: 150 cm²

Side = ∛125 = 5 cm; surface area = 6 × 5² = 150 cm².

Question 55: Choose the grammatically correct sentence:

He is one of those managers who push their team beyond reasonable limits. (Correct answer)
He is one of those managers who pushes his team beyond reasonable limits.
He is one of those managers who pushing their team beyond reasonable limits.
He is one of those managers whom push their team beyond reasonable limits.

Correct answer: He is one of those managers who push their team beyond reasonable limits.

The relative pronoun 'who' refers to 'those managers' (plural), not to 'one'. The verb and pronoun in the relative clause must therefore be plural: 'who push their team.' Option A incorrectly treats 'one' as the antecedent.

Question 56: Fill in the blank: The new policy was _______ by the board after weeks of deliberation.

nullified
ratified (Correct answer)
implicated
speculated

Correct answer: ratified

'Ratified' means officially approved or confirmed, which fits the context of a board approving a policy.

Question 57: A line graph tracks temperature (°F) over 5 days: 68, 72, 65, 70, 75. What is the range of temperatures recorded?

7°F
12°F
10°F (Correct answer)
8°F

Correct answer: 10°F

Range = maximum − minimum = 75 − 65 = 10°F.

Question 58: A company's profit was $120,000 in 2022 and grew by 15% in 2023, then declined by 10% in 2024. What was the 2024 profit?

$120,000
$117,000
$124,200 (Correct answer)
$113,400

Correct answer: $124,200

2023: $120,000 × 1.15 = $138,000; 2024: $138,000 × 0.90 = $124,200.

Question 59: A dual-axis chart shows monthly units sold (bar) and unit price (line). In March, units sold peaked at 500 while unit price was at its lowest ($40). In December, units sold = 200 at price $100. Which month had higher total revenue?

March, because $40×500 = $20,000 vs December's $20,000 (Correct answer)
Both months had the same revenue
December, because price was higher
March, because more units were sold

Correct answer: March, because $40×500 = $20,000 vs December's $20,000

March: 500×$40 = $20,000; December: 200×$100 = $20,000 — both are equal.

Question 60: Which HTTP method is idempotent and used to fully replace a resource?

PATCH
PUT (Correct answer)
POST
DELETE

Correct answer: PUT

PUT replaces the entire resource and is idempotent — calling it multiple times yields the same result.

Mettl Aptitude Assessment

The Mettl aptitude test evaluates candidates across verbal ability, quantitative aptitude, logical reasoning, data interpretation, and behavioral competencies for pre-employment screening.

Questions

75 min

Time Limit

50%

To Pass

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