AMCAT (Aspiring Minds Computer Adaptive Test) — Questions and Answers

Question 1: Some students are athletes. All athletes are disciplined. Conclusion: Some students are disciplined.

Cannot be determined
Only if all students are athletes
True (Correct answer)
False

Correct answer: True

Those students who are athletes are also disciplined → some students are disciplined. True.

Question 2: Four products with revenues: P1=Rs 50K, P2=Rs 80K, P3=Rs 60K, P4=Rs 30K. What is P2's contribution to total revenue?

36.4% (Correct answer)
40%
33%
28%

Correct answer: 36.4%

Total = 220K. P2 contribution = 80/220 × 100 = 36.4%.

Question 3: Which word is an ANTONYM of APPEASE?

Calm
Pacify
Soothe
Provoke (Correct answer)

Correct answer: Provoke

Appease means to satisfy or pacify, so 'provoke' (to stimulate anger) is its antonym.

Question 4: The average age of a class of 30 students is 14 years. If the age of the teacher is included, the average age becomes 15 years. Which of the following is the age of the teacher?

31 years
44 years
46 years (Correct answer)
45 years

Correct answer: 46 years

The total age of the 30 students is 30 * 14 = 420 years. When the teacher is included, there are 31 people, and the average age is 15. The total age of the students and the teacher is 31 * 15 = 465 years. The age of the teacher is the difference between these two totals: 465 - 420 = 45 years.

Question 5: Choose the word most similar in meaning to 'ELOQUENT':

Hesitant
Silent
Confused
Articulate (Correct answer)

Correct answer: Articulate

'Eloquent' means fluent and persuasive in speaking or writing. 'Articulate' is the closest synonym.

Question 6: In an adjacency list representation of a graph with V vertices and E edges, what is the total space used?

O(V + E) (Correct answer)
O(E)
O(V × E)
O(V)

Correct answer: O(V + E)

The adjacency list stores one list per vertex (O(V)) and each edge appears once (or twice for undirected), totaling O(V + E).

Question 7: Which word is a SYNONYM of COVERT?

Public
Open
Obvious
Secret (Correct answer)

Correct answer: Secret

Covert means not openly acknowledged or displayed, making 'secret' its synonym.

Question 8: If no M is P, and all S is M, what can be concluded?

Some S is P
No S is P (Correct answer)
All S is P
Some M is P

Correct answer: No S is P

All S is M and no M is P. Since every S is an M, and no M is P, no S can be P.

Question 9: Which word is an ANTONYM of OBSOLETE?

Antiquated
Outdated
Archaic
Current (Correct answer)

Correct answer: Current

Obsolete means no longer in use, so 'current' (of the present time) is its antonym.

Question 10: What comes next in the Fibonacci-like series: 1, 1, 2, 3, 5, 8, 13, ?

18
21 (Correct answer)
24
20

Correct answer: 21

Each term is the sum of the two preceding terms: 8 + 13 = 21.

Question 11: Choose the word that is most nearly opposite in meaning to the word 'FRUGALITY'.

Economy
Thrift
Extravagance (Correct answer)
Providence

Correct answer: Extravagance

Frugality means the quality of being economical with money or food. Extravagance, which means a lack of restraint in spending money, is its direct antonym. Economy, providence, and thrift are all synonyms for frugality.

Question 12: A shopkeeper marks up goods by 40% and then gives a 20% discount. What is the net profit percentage?

8%
20%
16%
12% (Correct answer)

Correct answer: 12%

SP = 100 × 1.4 × 0.8 = 112. Profit = 12%.

Question 13: Which of the following is an antonym for the word 'ADAMANT'?

Flexible (Correct answer)
Inflexible
Stubborn
Rigid

Correct answer: Flexible

'Adamant' means refusing to be persuaded or to change one's mind. 'Flexible' is the direct opposite, meaning capable of bending easily without breaking or willing to change or compromise. The other options are synonyms of adamant.

Question 14: What is a deadlock in a database system?

A transaction that never commits
A failed index rebuild
Two or more transactions waiting indefinitely for each other's locked resources (Correct answer)
A corrupted database state

Correct answer: Two or more transactions waiting indefinitely for each other's locked resources

Deadlock occurs when transactions each hold a resource the other needs, creating a circular wait.

Question 15: Monthly expenses: Food Rs 4000, Rent Rs 8000, Transport Rs 2000, Misc Rs 1000. What percentage is spent on rent?

53.3% (Correct answer)
45%
50%
60%

Correct answer: 53.3%

Total = 15000. Rent% = 8000/15000 × 100 = 53.3%.

Question 16: Which of the following is a valid deductive argument?

Premise 1: Every AMCAT test I've taken has been difficult. Conclusion: Therefore, the next AMCAT test will be difficult.
Premise 1: All squares are rectangles. Premise 2: All rectangles have four sides. Conclusion: Therefore, all squares have four sides. (Correct answer)
Premise 1: The sun has risen every day so far. Conclusion: Therefore, the sun will rise tomorrow.
Premise 1: All birds can fly. Premise 2: A penguin is a bird. Conclusion: Therefore, penguins can fly.

Correct answer: Premise 1: All squares are rectangles. Premise 2: All rectangles have four sides. Conclusion: Therefore, all squares have four sides.

A deductive argument is one where if the premises are true, the conclusion *must* be true. In option C, the conclusion logically and necessarily follows from the premises (This is a classic example of a categorical syllogism). Option A is a valid deductive structure, but the conclusion is factually incorrect because the first premise is false, but the question asks for a valid *argument structure*. However, C is a better example as both premises are true and the structure is valid. Options B and D are examples of inductive reasoning, where a conclusion is generalized from specific observations but is not guaranteed to be true.

Question 17: The gravitational force is inversely proportional to the _________ between two objects.

Charge
Speed
Mass
Distance (Correct answer)

Correct answer: Distance

According to Newton's Law of Universal Gravitation, the gravitational force between two objects is inversely proportional to the square of the distance between their centers. This fundamental principle of physics dictates that as the distance between objects increases, the gravitational force between them decreases.

Question 18: No reptile is a mammal. A whale is a mammal. Conclusion: A whale is not a reptile.

Uncertain
Partially true
False
True (Correct answer)

Correct answer: True

'No reptile is a mammal' is equivalent to 'No mammal is a reptile'. A whale is a mammal → A whale is not a reptile.

Question 19: If all squares are rectangles, and some rectangles are rhombuses, can we conclude that some squares are rhombuses?

Cannot be said at all
Yes, if all rectangles are rhombuses
No, not necessarily (Correct answer)
Yes, definitely

Correct answer: No, not necessarily

'Some rectangles are rhombuses' does not specify which rectangles — they may or may not be squares. We cannot conclude some squares are rhombuses.

Question 20: For which company was the percentage increase in sales from 2018 to 2022 the highest?

Both Y and Z
Company Y
Company Z
Company X (Correct answer)

Correct answer: Company X

Calculate the percentage increase for each company from 2018 to 2022. X: ((55-30)/30)*100 ≈ 83.33%. Y: ((60-40)/40)*100 = 50%. Z: ((70-50)/50)*100 = 40%. Company X had the highest percentage increase.

Question 21: A pipe can fill a tank in 12 hours and another pipe can empty it in 18 hours. If both are opened simultaneously, in how many hours will the tank be filled?

36 hours (Correct answer)
20 hours
30 hours
24 hours

Correct answer: 36 hours

Fill rate = 1/12 per hour. Empty rate = 1/18 per hour. Net fill rate = 1/12 – 1/18 = 1/36. Time = 36 hours.

Question 22: Looking at a portrait, a man said 'His mother is the wife of my father's son. I have no brothers or sisters.' Whose portrait was it?

His uncle
His nephew
His own son (Correct answer)
His cousin

Correct answer: His own son

My father's son = me (no siblings). Wife of me = my wife. His mother = my wife. So the portrait is of my son.

Question 23: Which word is a SYNONYM of LETHARGIC?

Active
Sluggish (Correct answer)
Vigorous
Energetic

Correct answer: Sluggish

Lethargic means lacking energy and enthusiasm, making 'sluggish' its synonym.

Question 24: A man bought oranges at 3 for Rs 5 and sold at 5 for Rs 12. Profit or loss percentage?

Gain 50%
Gain 40%
Loss 10%
Gain 44% (Correct answer)

Correct answer: Gain 44%

CP per orange = Rs 5/3. SP per orange = Rs 12/5. Profit% = (12/5 − 5/3)/(5/3) × 100 = (11/15)/(5/3) × 100 = 44%.

Question 25: Which word is an ANTONYM of OPAQUE?

Cloudy
Dark
Murky
Transparent (Correct answer)

Correct answer: Transparent

Opaque means not able to be seen through, so 'transparent' (allowing light to pass through) is its antonym.

Question 26: A manager known for her 'ACRIMONY' would most likely be described by her employees as:

Bitter (Correct answer)
Polite
Benevolent
Courteous

Correct answer: Bitter

'Acrimony' refers to bitterness or ill feeling. Therefore, a manager with this quality would be described as 'bitter'. 'Courteous', 'benevolent', and 'polite' are antonyms.

Question 27: Dion and Jane can finish a job in 72 hours; Jane and Lisa in 120 hours; and Dion and Lisa in 90 hours. What time can Dion do it on his own?

120 hours (Correct answer)
150 hours
118 hours
90 hours

Correct answer: 120 hours

Let D, J, and L be the time Dion, Jane, and Lisa take individually. Their combined work rates are 1/D + 1/J = 1/72, 1/J + 1/L = 1/120, and 1/D + 1/L = 1/90. Adding these equations gives 2(1/D + 1/J + 1/L) = 1/72 + 1/120 + 1/90 = 5/360 + 3/360 + 4/360 = 12/360 = 1/30. Therefore, the combined rate of all three is 1/D + 1/J + 1/L = 1/60. To find Dion's rate, subtract Jane and Lisa's combined rate: 1/D = 1/60 - 1/120 = 2/120 - 1/120 = 1/120. Thus, Dion can do the job alone in 120 hours.

Question 28: All roses are flowers. Some flowers are red. Which conclusion definitely follows?

No roses are red
All roses are red
Some roses are red
Some flowers are roses (Correct answer)

Correct answer: Some flowers are roses

From 'All roses are flowers', it follows by conversion that 'Some flowers are roses'.

Question 29: If the cost price of 12 items equals the selling price of 9 items, what is the profit percentage?

20%
30%
33.3% (Correct answer)
25%

Correct answer: 33.3%

12 CP = 9 SP → SP/CP = 12/9 = 4/3. Profit% = (1/3) × 100 = 33.3%.

Question 30: In 2022 there were 1200 employees; 800 were retained in 2023. What is the attrition rate?

25%
33.3% (Correct answer)
30%
40%

Correct answer: 33.3%

Attrition = (1200-800)/1200 × 100 = 400/1200 × 100 = 33.3%.

Question 31: A TV is sold at 25% profit. If the SP is Rs 6250, what is the CP?

Rs 5500
Rs 4800
Rs 4500
Rs 5000 (Correct answer)

Correct answer: Rs 5000

SP = CP × 1.25 = 6250 → CP = 6250/1.25 = Rs 5000.

Question 32: A database administrator notices that updating a customer's address requires changes in multiple tables, leading to inconsistencies when one of the updates fails. This is an example of what kind of anomaly?

Insertion Anomaly
Deletion Anomaly
Selection Anomaly
Update Anomaly (Correct answer)

Correct answer: Update Anomaly

An Update Anomaly occurs when a single piece of data is stored in multiple places. If that data is updated, it must be changed in all locations. If one or more of these updates fail, it leads to data inconsistency, which is the exact scenario described.

Question 33: What is the ratio of the total sales of Company X in 2018 and 2019 together to the total sales of Company Z in the same years?

3:4
7:5
4:5
5:7 (Correct answer)

Correct answer: 5:7

First, calculate the total sales for each company in the specified years. Total sales of Company X (2018+2019) = 30 + 45 = 75. Total sales of Company Z (2018+2019) = 50 + 55 = 105. The ratio is 75:105, which simplifies to 5:7 by dividing both numbers by 15.

Question 34: Team A scored 60, 70, 80 in three rounds. Team B scored 70, 65, 85. Which team has a higher total?

Team B (220) (Correct answer)
Cannot determine
Team A (210)
Both equal

Correct answer: Team B (220)

Team A: 210. Team B: 220. Team B is higher.

Question 35: All glasses are breakable. This object is not breakable. Conclusion: This object is not a glass.

Uncertain
False
Partially true
True (Correct answer)

Correct answer: True

Contrapositive of 'All glasses are breakable': 'Not breakable → not a glass'. Object is not breakable → not a glass.

Question 36: The simple interest on a sum for 3 years at 8% per annum is Rs 1440. What is the principal?

Rs 5400
Rs 6000 (Correct answer)
Rs 4800
Rs 7200

Correct answer: Rs 6000

SI = PRT/100 → 1440 = P×8×3/100 → P = 144000/24 = 6000.

Question 37: In a pie chart, if the total is 360 degrees and sector A is 90 degrees, what percentage does A represent?

25% (Correct answer)
30%
20%
15%

Correct answer: 25%

Percentage = (sector angle / 360) × 100 = (90/360) × 100 = 25%.

Question 38: An array-based queue of capacity N uses a circular approach to avoid false overflow. What is the condition for the queue being FULL?

rear == N - 1
(rear + 1) % N == front (Correct answer)
front == rear
front == 0

Correct answer: (rear + 1) % N == front

In a circular queue, (rear + 1) % N == front means the slot just ahead of front is occupied, signaling a full queue.

Question 39: All politicians are liars. Ravi is not a liar. What can be concluded about Ravi?

Nothing can be concluded
Ravi is not a politician (Correct answer)
Ravi may be a politician
Ravi is a politician

Correct answer: Ravi is not a politician

All politicians are liars → contrapositive: if not a liar, then not a politician. Ravi is not a liar, so Ravi is not a politician.

Question 40: In which year did Company Z show the highest percentage increase in sales over the previous year?

2022
2019 (Correct answer)
2020
2021

Correct answer: 2019

Calculate the percentage increase for each year: 2019: ((55-50)/50)*100 = 10%. 2020: ((60-55)/55)*100 ≈ 9.09%. 2021: ((65-60)/60)*100 ≈ 8.33%. 2022: ((70-65)/65)*100 ≈ 7.69%. The highest increase was 10% in 2019.

Question 41: Which of the following is NOT a linear data structure?

Queue
Linked List
Array
Binary Tree (Correct answer)

Correct answer: Binary Tree

A binary tree is a hierarchical (non-linear) structure, unlike arrays, linked lists, and queues.

Question 42: The pupils ___________ me always as they leave the classroom for lunch.

Disturb (Correct answer)
Disturbed
Will disturb
Disturbs

Correct answer: Disturb

The subject "The pupils" is plural, and the adverb "always" indicates a habitual action in the present tense. For a plural subject in the simple present tense, the verb takes its base form without an "-s" ending. Therefore, "disturb" is the correct verb conjugation.

Question 43: Which of the following operations is NOT O(1) for a hash table on average?

Sort all elements (Correct answer)
Search
Insert
Delete

Correct answer: Sort all elements

Insert, delete, and search are O(1) average in a hash table. Sorting all elements requires O(n log n).

Question 44: If in a certain language, 'ROSE' is coded as 'TQUG', how is 'BLUE' coded?

DNWG (Correct answer)
CLVF
DMWH
CNVF

Correct answer: DNWG

The coding pattern involves shifting each letter forward by two positions in the alphabet. R (+2) -> T, O (+2) -> Q, S (+2) -> U, E (+2) -> G. Applying the same logic to 'BLUE': B (+2) -> D, L (+2) -> N, U (+2) -> W, E (+2) -> G.

Question 45: In a certain code, 'BREAK' is written as '51342' and 'KITE' is written as '2796'. How is 'RIBB' written in that code?

1755 (Correct answer)
1752
1355
1722

Correct answer: 1755

This is a direct substitution code where each letter is assigned a specific digit. From 'BREAK', we get R=1 and B=5. From 'KITE', we get I=7. Therefore, to code 'RIBB', we substitute the corresponding digits: R -> 1, I -> 7, B -> 5, B -> 5. The code is 1755.

Question 46: Statements: 1. Some papers are files. 2. Some files are books. Conclusions: I. Some papers are books. II. Some books are papers.

Neither I nor II follows (Correct answer)
Both I and II follow
Only conclusion I follows
Only conclusion II follows

Correct answer: Neither I nor II follows

There is an overlap between 'papers' and 'files', and an overlap between 'files' and 'books'. However, there is no definite information about the relationship between 'papers' and 'books'. The part of 'files' that overlaps with 'papers' might be completely different from the part that overlaps with 'books'. Therefore, neither conclusion is definite.

Question 47: Find the next number: 3, 7, 15, 31, 63, ?

125
121
127 (Correct answer)
130

Correct answer: 127

Pattern: each term = 2 × previous + 1. 2×63+1 = 127.

Question 48: Which word is an ANTONYM of TURBULENT?

Peaceful (Correct answer)
Rowdy
Stormy
Chaotic

Correct answer: Peaceful

Turbulent means moving unsteadily or with great agitation, so 'peaceful' is its antonym.

Question 49: A table is in First Normal Form (1NF). To achieve Second Normal Form (2NF), what additional condition must be met?

All columns must contain atomic values.
It must not have any partial dependencies. (Correct answer)
All attributes must be dependent on the primary key.
It must not have any transitive dependencies.

Correct answer: It must not have any partial dependencies.

A table is in 2NF if it is already in 1NF and every non-prime attribute is fully functionally dependent on the primary key. This means there should be no partial dependencies, where a non-key attribute depends only on a part of a composite primary key.

Question 50: All M are N. Some N are O. Can we conclude 'Some M are O'?

Yes
Only if some M are N
Only if all N are O
No (Correct answer)

Correct answer: No

The N's that are O may be entirely different from the N's that are M. We cannot conclude 'Some M are O'.

Question 51: Which word is an ANTONYM of EPHEMERAL?

Transient
Permanent (Correct answer)
Brief
Fleeting

Correct answer: Permanent

Ephemeral means lasting a very short time, so 'permanent' is its antonym.

Question 52: Two numbers are in ratio 4:5. Their LCM is 180. What is their HCF?

9 (Correct answer)
15
6
12

Correct answer: 9

Numbers = 4k and 5k. LCM(4k,5k) = 20k = 180 → k = 9. HCF = k = 9.

Question 53: Which word is an ANTONYM of CONVOLUTED?

Twisted
Simple (Correct answer)
Complex
Intricate

Correct answer: Simple

Convoluted means extremely complex and difficult to follow, so 'simple' is its antonym.

Question 54: Which protocol is used to automatically assign IP addresses to devices on a network?

DNS
ICMP
DHCP (Correct answer)
ARP

Correct answer: DHCP

DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses, subnet masks, gateways, and DNS servers to network devices.

Question 55: What is the maximum number of elements that can be stored in a 2D array declared as int a[4][5]?

20 (Correct answer)
16
9
25

Correct answer: 20

A 2D array of dimensions 4×5 holds 4*5 = 20 elements.

Question 56: Statements: 1. Some cats are black. 2. Some black things are beautiful. Which of the following conclusions is correct based on the statements?

Some cats are beautiful.
No definite conclusion can be drawn. (Correct answer)
All cats are beautiful.
Some cats are not beautiful.

Correct answer: No definite conclusion can be drawn.

This is a classic syllogism problem where the middle term ('black things') is not distributed in either premise. The first premise talks about 'some cats' and the second talks about 'some black things'. The group of black things that are beautiful may or may not overlap with the group of cats that are black. Since there is no guaranteed connection between 'cats' and 'beautiful things', no conclusion can be logically derived.

Question 57: Which traversal of a BST visits nodes in ascending sorted order?

Inorder (Correct answer)
Level-order
Postorder
Preorder

Correct answer: Inorder

Inorder traversal (left → root → right) of a BST visits nodes in non-decreasing sorted order.

Question 58: Find the odd one out: 4, 9, 16, 25, 35, 49

4
49
35 (Correct answer)
25

Correct answer: 35

4=2^2, 9=3^2, 16=4^2, 25=5^2, 49=7^2 are all perfect squares. 35 is not a perfect square.

Question 59: In the sentence, 'The team's performance was ABJECT, leading to a significant loss,' which of the following words is the best synonym for 'ABJECT'?

Commendable
Praiseworthy
Excellent
Miserable (Correct answer)

Correct answer: Miserable

The word 'abject' means experienced to the maximum degree, often in a negative context, implying a state of being utterly miserable or wretched. 'Miserable' is the closest synonym. The other options are antonyms.

Question 60: Statements: 1. All pens are pencils. 2. No pencil is a marker. Conclusions: I. No pen is a marker. II. Some markers are pens.

Neither I nor II follows
Only conclusion II follows
Both I and II follow
Only conclusion I follows (Correct answer)

Correct answer: Only conclusion I follows

If all pens are inside the 'pencil' category, and the 'pencil' category has no overlap with the 'marker' category, then it logically follows that the 'pen' category can have no overlap with the 'marker' category. Conclusion I is valid, and Conclusion II is impossible.

Question 61: If an algorithm takes 2 seconds for n=100 and exhibits O(n squared) complexity, how long for n=1000?

200 seconds (Correct answer)
20 seconds
2000 seconds
20000 seconds

Correct answer: 200 seconds

O(n^2): n increases 10x so time increases 100x. 2 × 100 = 200 seconds.

Question 62: Which word is an ANTONYM of BENIGN?

Gentle
Harmless
Malignant (Correct answer)
Kind

Correct answer: Malignant

Benign means gentle and not harmful, so 'malignant' (virulently harmful) is its antonym.

Question 63: What is a view in SQL?

A virtual table defined by a query (Correct answer)
A physical copy of a table
An index on a table
A stored procedure

Correct answer: A virtual table defined by a query

A view is a virtual table whose contents are defined by a SQL query. It does not store data itself.

Question 64: Select the word that is an ANTONYM for 'GARRULOUS'.

Loquacious
Taciturn (Correct answer)
Talkative
Voluble

Correct answer: Taciturn

'Garrulous' means excessively talkative, especially on trivial matters. 'Taciturn' means reserved or uncommunicative in speech; saying little. The other options, 'Talkative', 'Loquacious', and 'Voluble', are all synonyms for 'Garrulous'.

Question 65: Which word is a SYNONYM of TENACIOUS?

Yielding
Persistent (Correct answer)
Fragile
Feeble

Correct answer: Persistent

Tenacious means holding firmly to something and not giving up, making 'persistent' its synonym.

Question 66: In a network with subnet mask 255.255.255.192, how many subnets and hosts per subnet are created from a Class C address?

4 subnets, 64 hosts
2 subnets, 62 hosts
4 subnets, 62 hosts (Correct answer)
2 subnets, 64 hosts

Correct answer: 4 subnets, 62 hosts

255.255.255.192 = /26, borrowing 2 bits gives 4 subnets, and the remaining 6 host bits yield 2^6 - 2 = 62 usable hosts per subnet.

Question 67: A circular queue is an improvement over a linear queue because it:

Is easier to implement.
Utilizes the empty space in the array more efficiently. (Correct answer)
Allows faster access to elements.
Can store more elements in total.

Correct answer: Utilizes the empty space in the array more efficiently.

In a linear queue implemented with an array, space at the beginning of the array becomes unusable after elements are dequeued. A circular queue overcomes this by wrapping around, allowing the rear to point to the start of the array if space is available, thus using memory more effectively.

Question 68: Find the next term in the series: 2, 6, 12, 20, 30, ?

44
42 (Correct answer)
36
40

Correct answer: 42

Differences: 4, 6, 8, 10, 12. Next term = 30 + 12 = 42.

Question 69: Which word is a SYNONYM of CANDID?

Evasive
Deceptive
Frank (Correct answer)
Dishonest

Correct answer: Frank

Candid means truthful and straightforward, making 'frank' its closest synonym.

Question 70: What is the difference between the total sales of Company Y and the total sales of Company X over the five years?

15 Crores
0 Crores (Correct answer)
10 Crores
5 Crores

Correct answer: 0 Crores

First, sum the total sales for each company. Total Sales of Company Y = 40+35+50+55+60 = 240. Total Sales of Company X = 30+45+50+60+55 = 240. The difference is 240 - 240 = 0.

Question 71: Which word is an ANTONYM of AMBIGUOUS?

Unclear
Vague
Clear (Correct answer)
Dubious

Correct answer: Clear

Ambiguous means open to more than one interpretation, so 'clear' (unambiguous) is its antonym.

Question 72: Which word is a SYNONYM of DILIGENT?

Negligent
Lazy
Careless
Industrious (Correct answer)

Correct answer: Industrious

Diligent means having or showing care in one's work, so 'industrious' is its synonym.

Question 73: From a bar chart: Product A sold 500 units, Product B sold 800, Product C sold 300. What is the ratio of A to C?

5:3 (Correct answer)
3:5
8:3
5:8

Correct answer: 5:3

A:C = 500:300 = 5:3 (divide both by 100).

Question 74: An item is marked at Rs. 1,500. The shopkeeper offers two successive discounts of 20% and 10%. What is the final selling price of the item?

Rs. 1,050
Rs. 1,100
Rs. 1,080 (Correct answer)
Rs. 975

Correct answer: Rs. 1,080

Successive discounts are calculated one after the other. First discount = 20% of 1500 = 0.20 * 1500 = Rs. 300. Price after first discount = 1500 - 300 = Rs. 1200. Second discount = 10% of the new price (Rs. 1200) = 0.10 * 1200 = Rs. 120. Final selling price = 1200 - 120 = Rs. 1,080. Alternatively, use the formula for successive discounts: Final Price = Initial Price * (1 - D1/100) * (1 - D2/100) = 1500 * (1 - 20/100) * (1 - 10/100) = 1500 * 0.8 * 0.9 = Rs. 1,080.

Question 75: A person walks at 4 km/h and reaches office 10 minutes late. If he walks at 6 km/h he reaches 5 minutes early. What is the distance to the office?

4 km
5 km
3 km (Correct answer)
6 km

Correct answer: 3 km

Time difference = 15 min = 1/4 hr. d/4 − d/6 = 1/4 → d/12 = 1/4 → d = 3 km.

Question 76: Find the missing number in the series: 2, 5, 10, 17, 26, ?, 50

38
37 (Correct answer)
35
36

Correct answer: 37

Terms are n^2 + 1: 1+1=2, 4+1=5, 9+1=10, 16+1=17, 25+1=26, 36+1=37, 49+1=50.

Question 77: Given the statement: 'All successful people work hard.' Which of the following can be logically concluded?

All people who work hard are successful.
If a person is not successful, they did not work hard.
If a person does not work hard, they will not be successful. (Correct answer)
If a person works hard, they will be successful.

Correct answer: If a person does not work hard, they will not be successful.

This is a question of conditional logic. The original statement is 'If you are successful, then you work hard.' (Successful -> Work Hard). The contrapositive of a true statement is also always true. The contrapositive reverses and negates the terms: 'If you do not work hard, then you are not successful.' (Not Work Hard -> Not Successful). Option A is the converse (Work Hard -> Successful), which is not necessarily true. Option B is the inverse (Not Successful -> Not Work Hard), which is also not necessarily true. Option C is also the converse.

Question 78: A nested loop where the outer loop runs 'n' times and the inner loop also runs 'n' times for each outer iteration will typically have a time complexity of:

O(2n)
O(n)
O(log n)
O(n^2) (Correct answer)

Correct answer: O(n^2)

For each of the 'n' iterations of the outer loop, the inner loop performs 'n' iterations. This results in a total of n * n = n^2 operations, leading to a quadratic time complexity.

Question 79: Some A are B. Some B are C. Conclusion: Some A are C.

True only if all B are C
May or may not be true (Correct answer)
Definitely false
Definitely true

Correct answer: May or may not be true

The A-B overlap and B-C overlap may be completely disjoint sets of B. No definite conclusion.

Question 80: In Java, when you call an overridden method through a base-class reference, which method is executed?

Runtime error occurs
Compilation error occurs
Base class method
Derived class method (Correct answer)

Correct answer: Derived class method

Java uses dynamic dispatch — the actual object type determines which method runs at runtime.

Question 81: What is the key difference between TCP and UDP?

TCP is connectionless; UDP is connection-oriented
TCP guarantees delivery; UDP does not guarantee delivery (Correct answer)
TCP operates at Layer 3; UDP operates at Layer 4
TCP is faster; UDP is slower

Correct answer: TCP guarantees delivery; UDP does not guarantee delivery

TCP guarantees reliable, ordered delivery through acknowledgments and retransmission, while UDP is unreliable and does not guarantee packet delivery or order.

Question 82: Which OOP principle allows a class to have multiple methods with the same name but different parameters?

Inheritance
Abstraction
Encapsulation
Method Overloading (Correct answer)

Correct answer: Method Overloading

Method overloading is compile-time polymorphism where multiple methods share the same name but differ in parameter list.

Question 83: The politician's speech was filled with 'PLATITUDES' and lacked any real substance. Choose the best SYNONYM for 'PLATITUDES'.

Profundities
Nuances
Clichés (Correct answer)
Coinages

Correct answer: Clichés

A 'Platitude' is a remark or statement, especially one with a moral content, that has been used too often to be interesting or thoughtful. 'Clichés' are phrases or opinions that are overused and betray a lack of original thought, which is very similar in meaning. 'Profundities' are deep insights, the opposite of platitudes.

Question 84: Statements: 1. All smartphones are electronic devices. 2. Some electronic devices are manufactured in China. Conclusions: I. All smartphones are manufactured in China. II. Some smartphones may be manufactured in China.

Neither I nor II follows
Only conclusion I follows
Both I and II follow
Only conclusion II follows (Correct answer)

Correct answer: Only conclusion II follows

The first statement establishes that smartphones are a subset of electronic devices. The second statement says that some (not necessarily all) electronic devices are made in China. We cannot definitively conclude that ALL smartphones are made in China because the group of electronic devices made in China might not overlap with the group of smartphones. However, it is a possibility that they do overlap, making conclusion II ('Some smartphones may be manufactured in China') a valid logical possibility. Conclusion I is a definite statement that cannot be proven from the premises.

Question 85: Which word is a SYNONYM of LUCID?

Obscure
Complex
Clear (Correct answer)
Murky

Correct answer: Clear

Lucid means expressed clearly and easy to understand, making 'clear' its synonym.

Question 86: A sum of money invested at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. What is the principal amount?

Rs. 650
Rs. 698 (Correct answer)
Rs. 720
Rs. 700

Correct answer: Rs. 698

The interest for one year is the difference between the amounts after 4 years and 3 years. So, Interest for 1 year = Rs. 854 - Rs. 815 = Rs. 39. The interest for 3 years is 3 * 39 = Rs. 117. The principal amount is the amount after 3 years minus the interest for 3 years. Principal = Rs. 815 - Rs. 117 = Rs. 698.

Question 87: A train traveling at 72 km/hr crosses a platform 200 meters long in 25 seconds. What is the length of the train?

200 meters
250 meters
300 meters (Correct answer)
350 meters

Correct answer: 300 meters

First, convert the speed of the train from km/hr to m/s. Speed = 72 * (5/18) = 20 m/s. The total distance covered by the train to cross the platform is the length of the train (L) plus the length of the platform. So, Distance = L + 200. Using the formula Distance = Speed * Time, we get L + 200 = 20 * 25. L + 200 = 500. Therefore, L = 500 - 200 = 300 meters.

Question 88: Which word is an ANTONYM of OSTENTATIOUS?

Showy
Modest (Correct answer)
Gaudy
Flamboyant

Correct answer: Modest

Ostentatious means displaying wealth in a conspicuous way, so 'modest' (not showy) is its antonym.

Question 89: Which word is a SYNONYM of ADROIT?

Inept
Awkward
Skillful (Correct answer)
Clumsy

Correct answer: Skillful

Adroit means clever or skillful in using the hands or mind, making 'skillful' its synonym.

Question 90: Which word is a SYNONYM of MENDACIOUS?

Deceitful (Correct answer)
Truthful
Sincere
Honest

Correct answer: Deceitful

Mendacious means not telling the truth, making 'deceitful' its closest synonym.

Question 91: Sales grew from 200 units in January to 250 units in February. What is the percentage increase?

25% (Correct answer)
10%
50%
20%

Correct answer: 25%

% increase = (250-200)/200 × 100 = 25%.

Question 92: In a series A, C, E, G, I, the next term is:

L
K (Correct answer)
J
M

Correct answer: K

The series consists of every other letter: A(1), C(3), E(5), G(7), I(9), K(11).

AMCAT (Aspiring Minds Computer Adaptive Test)

The AMCAT is an employability assessment used across India and globally, testing English comprehension, quantitative ability, logical reasoning, and optional domain modules.

Questions

120 min

Time Limit

50%

To Pass

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