- Test booklet
- प्रश्न पुस्तिका
- Booklet No.
- 8766076
- Series
- C
NIACL AO Prelims Paper 4
- Questions
- 100
- Maximum marks
- 100
- Minutes allowed
- 60
Instructions निर्देश
- This booklet has 100 questions in 3 parts: A. English Language (30), B. Reasoning Ability (35), C. Quantitative Aptitude (35).
- Each part has its own clock. When it runs out, that part closes and the next opens.
- Each question has 5 options and one right answer. A right answer earns 1 mark. A wrong answer costs 0.25. A question left blank scores nothing.
- Fill one bubble per question on the answer sheet. Unlike a real sheet, you can clear it and change your mind.
Scripting is off, so this page is a printed paper: answer on paper, then open each question’s working.
Part AEnglish Language
-
Select the incorrectly spelt word.
Answer and working
Answer D
innovattive is wrong; it is spelt innovative. The others are correct.
-
Select the word closest in meaning to the given word.
ForageAnswer and working
Answer D
Forage (verb) and Scrounge share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word closest in meaning to the given word.
ViableAnswer and working
Answer B
Viable (adjective) and Feasible share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the incorrectly spelt word.
Answer and working
Answer D
concievable is wrong; it is spelt conceivable. The others are correct.
-
Select the incorrectly spelt word.
Answer and working
Answer E
inadmisible is wrong; it is spelt inadmissible. The others are correct.
-
Select the correctly spelt word.
Answer and working
Answer B
The correct spelling is vegetable.
-
Select the correctly spelt word.
Answer and working
Answer A
The correct spelling is admirable.
-
Select the word closest in meaning to the given word.
TenacityAnswer and working
Answer E
Tenacity (noun) and Perseverance share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word closest in meaning to the given word.
CannyAnswer and working
Answer E
Canny (adjective) and Clever share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the one word that can replace the given group of words.
Someone who takes the place of another personAnswer and working
-
Select the word opposite in meaning to the given word.
DomesticAnswer and working
-
Select the word closest in meaning to the given word.
LarcenyAnswer and working
Answer C
Larceny (noun) and Theft share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the one word that can replace the given group of words.
Someone who dissipates resources self-indulgentlyAnswer and working
-
Select the word opposite in meaning to the given word.
StimulateAnswer and working
-
Select the one word that can replace the given group of words.
An attendant who loads guns for someone shooting gameAnswer and working
-
Select the word closest in meaning to the given word.
ApparentAnswer and working
Answer B
Apparent (adjective) and Plain share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word opposite in meaning to the given word.
ExpandAnswer and working
-
Select the one word that can replace the given group of words.
A person who is voluntarily absent from home or countryAnswer and working
-
Select the correctly spelt word.
Answer and working
Answer A
The correct spelling is additional.
-
Select the word closest in meaning to the given word.
ProsperAnswer and working
Answer E
Prosper (verb) and Thrive share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word closest in meaning to the given word.
AvertAnswer and working
Answer A
Avert (verb) and Avoid share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the one word that can replace the given group of words.
Someone who assists a priest or minister in a liturgical serviceAnswer and working
Answer A
Acolyte: someone who assists a priest or minister in a liturgical service.
Source: WordNet 3.1
-
Select the incorrectly spelt word.
Answer and working
Answer D
judiciery is wrong; it is spelt judiciary. The others are correct.
-
Select the word opposite in meaning to the given word.
PersuasiveAnswer and working
-
Select the correctly spelt word.
Answer and working
Answer D
The correct spelling is chandelier.
-
Select the word opposite in meaning to the given word.
UptownAnswer and working
-
Select the word opposite in meaning to the given word.
UnilateralAnswer and working
-
Select the word closest in meaning to the given word.
NeatAnswer and working
Answer C
Neat (adjective) and Orderly share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the one word that can replace the given group of words.
A student who attends a course but does not take it for creditAnswer and working
-
Select the correctly spelt word.
Answer and working
Answer D
The correct spelling is accomplice.
Part BReasoning Ability
-
In the English alphabet, which letter is 9th to the right of the 16th letter from the right?
Answer and working
Answer D
The 16th letter from the right is K (position 11). 9 places to the right: position 20, which is T.
-
Statement: M ≥ L < C < S = T
Conclusions: I. L < S II. T > MAnswer and working
Answer A
L and S: the chain gives L < S, so L < S is definitely true. T and M: the signs between them point both ways, so no relation can be fixed, so T > M is not definitely true. So: Only conclusion I follows.
-
If ‘+’ means ‘×’, ‘−’ means ‘+’, ‘×’ means ‘÷’, ‘÷’ means ‘−’, what is the value of 7 + 7 − 5 ÷ 16 × 4?
Answer and working
Answer E
Replace the signs: 7 × 7 + 5 − 16 ÷ 4. Division and multiplication first, then addition and subtraction: 50.
-
Which number replaces the question mark? 7, 14, 28, 56, ?, 224
Answer and working
Answer C
The rule: each term is the previous × 2. The missing term is 112.
-
If ‘+’ means ‘÷’, ‘−’ means ‘×’, ‘×’ means ‘+’, ‘÷’ means ‘−’, what is the value of 26 × 6 ÷ 6 + 6 − 3?
Answer and working
Answer A
Replace the signs: 26 + 6 − 6 ÷ 6 × 3. Division and multiplication first, then addition and subtraction: 29.
-
In a certain code, RIBBON is written as IRYYLM. How is TRAIN written in that code?
Answer and working
Answer A
From RIBBON → IRYYLM: each letter is replaced by its opposite in the alphabet (A ↔ Z, B ↔ Y …). Applied to TRAIN: GIZRM.
-
Statements:
(1) Some doors are not tables.
(2) Some tables are kites.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) Some tables are not kites.
(II) Some kites are doors.Answer and working
Answer D
Conclusion I need not hold: every one of the tables may be kites. Conclusion II need not hold: kites and doors need not overlap at all. So: Neither conclusion follows.
-
J is the son of F. F is the brother of N. How is J related to N?
Answer and working
Answer D
Follow the links out from N: F is N’s brother; J is F’s son. So J is N’s nephew.
-
In a certain code, FLOWER is written as DJMUCP. How is DESK written in that code?
Answer and working
Answer B
From FLOWER → DJMUCP: each letter moves 2 places back. Applied to DESK: BCQI.
-
Statement: A < L < H < Z > F
Conclusions: I. A ≤ Z II. L ≤ FAnswer and working
Answer A
A and Z: the chain gives A < Z, so A ≤ Z is definitely true. L and F: the signs between them point both ways, so no relation can be fixed, so L ≤ F is not definitely true. So: Only conclusion I follows.
Directions for questions 41 to 45
Seven friends, Arun, Bina, Chetan, Divya, Esha, Farhan and Gopal, sit in a row facing north. Exactly one person sits between Divya and Gopal. Esha sits immediately to the left of Arun. Chetan sits third to the left of Gopal. Exactly 3 people sit between Arun and Gopal. Arun sits somewhere to the right of Farhan.-
Who sits exactly between Arun and Divya?
Answer and working
Answer E
Only one order fits every clue, from the left: Farhan, Esha, Arun, Chetan, Divya, Bina, Gopal. Chetan.
-
How many people sit between Divya and Farhan?
Answer and working
Answer D
Only one order fits every clue, from the left: Farhan, Esha, Arun, Chetan, Divya, Bina, Gopal. Between them: 3.
-
What is Chetan’s position from the left end?
Answer and working
Answer A
Only one order fits every clue, from the left: Farhan, Esha, Arun, Chetan, Divya, Bina, Gopal. 4th.
-
Who sits immediately to the right of Chetan?
Answer and working
Answer B
Only one order fits every clue, from the left: Farhan, Esha, Arun, Chetan, Divya, Bina, Gopal. Divya.
-
Who sits at the extreme right end?
Answer and working
Answer D
Only one order fits every clue, from the left: Farhan, Esha, Arun, Chetan, Divya, Bina, Gopal. Gopal.
-
Which one does not belong with the others?
Answer and working
Answer C
25, 361, 256, 144 are perfect squares; 269 is not. The odd one is 269.
-
In a certain code, TRAIN is written as OJBSU. How is TABLE written in that code?
Answer and working
Answer E
From TRAIN → OJBSU: the word is written backwards and each letter moves 1 forward. Applied to TABLE: FMCBU.
-
Kabir walks 13 km towards the north. He turns left and walks 8 km. He turns left and walks 13 km. How far is he from the starting point in a straight line?
Answer and working
Answer D
Taking east and north as positive: he ends 8 km west and 0 km north of the start. Straight-line distance = √(8² + 0²) = 8 km.
-
Statement: W ≥ C ≥ A ≤ D ≤ M
Conclusions: I. D ≥ C II. W > AAnswer and working
Answer D
D and C: the signs between them point both ways, so no relation can be fixed, so D ≥ C is not definitely true. W and A: the chain gives W ≥ A, so W > A is not definitely true. So: Neither conclusion follows.
-
Statements:
(1) Some stones are rings.
(2) All doors are stones.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) Some doors are not rings.
(II) All doors are rings.Answer and working
Answer C
Conclusion I need not hold: every one of the doors may be rings. Conclusion II need not hold: some doors may lie outside rings. But the two cannot both be false: in every diagram exactly one of them is true. So: Either conclusion I or II follows.
-
Pointing to a man in a photograph, Kavita said, ‘He is the only son of my mother’s father.’ How is the man related to Kavita?
Answer and working
Answer C
The only son of my mother’s father is my mother’s brother. So the man is Kavita’s uncle.
-
Which number replaces the question mark? 11, 18, 27, 38, 51, 66, ?
Answer and working
Answer E
The rule: the terms are 3², 4², 5² … plus 2. The missing term is 83.
-
Sana walks 15 km towards the north. She turns right and walks 9 km. She turns left and walks 14 km. She turns left and walks 5 km. She turns right and walks 12 km. Which direction is she facing now?
Answer and working
Answer A
Each right turn is a quarter turn clockwise, each left anticlockwise. The last leg runs North.
-
S is the sister of K. K is the father of D. How is S related to D?
Answer and working
Answer B
Follow the links out from D: K is D’s father; S is K’s sister. So S is D’s aunt.
-
Statements:
(1) All papers are kites.
(2) No kites are coins.
(3) Some coins are tables.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) No tables are coins.
(II) Some coins are not kites.Answer and working
Answer B
Conclusion I need not hold: tables and coins may overlap. Conclusion II holds in every diagram the statements allow. So: Only conclusion II follows.
-
In a class, Anjali ranks 23rd from the top and 7th from the bottom. How many students are in the class?
Answer and working
Answer A
Anjali is counted in both ranks, so the total is 23 + 7 − 1 = 29.
-
In the English alphabet, which letter is 7th to the left of the 20th letter from the left?
Answer and working
Answer B
The 20th letter from the left is T (position 20). 7 places to the left: position 13, which is M.
-
Pooja walks 14 km towards the south. She turns right and walks 10 km. She turns left and walks 15 km. She turns right and walks 10 km. She turns right and walks 12 km. In which direction is she from the starting point?
Answer and working
Answer B
Taking east and north as positive: she ends 20 km west and 17 km south of the start, which is to the South-west.
-
Statement: D < C ≥ K ≥ V ≥ R
Conclusions: I. R = C II. R < CAnswer and working
Answer C
R and C: the chain gives R ≤ C, so R = C is not definitely true. R and C: the chain gives R ≤ C, so R < C is not definitely true. Together the two cover every possibility the chain allows. So: Either conclusion I or II follows.
-
Statements:
(1) Some tables are bags.
(2) Some tables are watches.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) Some bags are not watches.
(II) All bags are tables.Answer and working
Answer D
Conclusion I need not hold: every one of the bags may be watches. Conclusion II need not hold: some bags may lie outside tables. So: Neither conclusion follows.
-
In a certain code, PENCIL is written as SHQFLO. How is MONEY written in that code?
Answer and working
Answer A
From PENCIL → SHQFLO: each letter moves 3 places forward. Applied to MONEY: PRQHB.
-
Statements:
(1) No shirts are bags.
(2) All flowers are bags.
(3) No clocks are flowers.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) Some flowers are bags.
(II) Some shirts are not flowers.Answer and working
Answer E
Conclusion I holds in every diagram the statements allow. Conclusion II holds in every diagram the statements allow. So: Both conclusions follow.
-
Statement: P ≤ A < S < L > H
Conclusions: I. S ≥ P II. L > PAnswer and working
Answer E
S and P: the chain gives S > P, so S ≥ P is definitely true. L and P: the chain gives L > P, so L > P is definitely true. So: Both conclusions follow.
-
Statements:
(1) Some lamps are kites.
(2) All kites are flowers.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) Some lamps are not flowers.
(II) All lamps are flowers.Answer and working
Answer C
Conclusion I need not hold: every one of the lamps may be flowers. Conclusion II need not hold: some lamps may lie outside flowers. But the two cannot both be false: in every diagram exactly one of them is true. So: Either conclusion I or II follows.
-
In a class, Vikram ranks 15th from the top and 29th from the bottom. How many students are in the class?
Answer and working
Answer E
Vikram is counted in both ranks, so the total is 15 + 29 − 1 = 43.
Part CQuantitative Aptitude
-
The population of a town is 38,025. It grows by 20% every year. What will it be after 2 years?
Answer and working
Answer C
38,025 × (1 + 20/100)² = 38,025 × 1.44 = 54,756. Growing 20% on 38,025 twice, not 40% once.
-
Solve both equations and compare x and y.
I. x² + 7x = 0
II. y² + 6y − 7 = 0Answer and working
Answer E
I gives x = −7 or 0. II gives y = −7 or 1. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.
-
What is the average of the first 21 natural numbers?
Answer and working
Answer B
Sum = 21 × 22/2, so the average is (21 + 1)/2 = 11.
-
Solve both equations and compare x and y.
I. x² − 18x + 72 = 0
II. y² + 5y − 6 = 0Answer and working
Answer A
I gives x = 6 or 12. II gives y = −6 or 1. Every x is greater than every y: x > y.
-
A bag holds 2 red, 7 blue and 4 green balls. Two balls are drawn at random without replacement. What is the probability that both are red?
Answer and working
Answer C
Ways to pick 2 red: 1. Ways to pick any 2: 78. Probability = 1⁄78.
Directions for questions 71 to 75
Study the table and answer the questions that follow.
Books issued by five libraries, in two successive years Library Year 1 Year 2 Library A 420 441 Library B 320 288 Library C 660 528 Library D 380 437 Library E 560 700 -
Library D’s Year 2 figure is what percent of Library E’s Year 2 figure?
Answer and working
Answer B
437 ÷ 700 × 100 = 62.43%.
-
Which one grew the most in percentage terms from Year 1 to Year 2?
Answer and working
Answer E
Growth: Library A 5%, Library B −10%, Library C −20%, Library D 15%, Library E 25%. The highest is Library E.
-
What is the average Year 2 figure of the five?
Answer and working
Answer D
Sum of Year 2 = 2,394. ÷ 5 = 478.8.
-
What is the total for Library C over the two years?
Answer and working
Answer D
660 + 528 = 1,188.
-
What is the ratio of Library B’s Year 1 figure to Library E’s Year 2 figure?
Answer and working
Answer C
320 : 700 = 16 : 35.
-
44 litres of a mixture contains milk and water in the ratio 6 : 5. How much water must be added to make the ratio 2 : 3?
Answer and working
Answer A
Milk = 24 l, water = 20 l. For 2 : 3, water must be 24 × 3/2 = 36 l. Add 36 − 20 = 16 litres.
-
A scooter runs at 126 km/h. What is its speed in metres per second?
Answer and working
Answer E
Multiply by 5/18: 126 × 5/18 = 35 m/s.
-
Which number replaces the question mark? 4, 5, 9, 18, 34, 59, ?
Answer and working
Answer E
The rule: the differences are squares: 1, 4, 9, 16, 25, 36. The missing term is 95.
-
Which number replaces the question mark? 8, 27, 64, 125, ?, 343
Answer and working
Answer C
The rule: the terms are 2³, 3³, 4³ …. The missing term is 216.
-
A train 240 m long crosses a platform 270 m long in 17 seconds. What is the speed of the train?
Answer and working
Answer C
It must cover its own length and the platform: 240 + 270 = 510 m in 17 s, so 30 m/s = 30 × 18/5 = 108 km/h.
-
Which number replaces the question mark? 6, 15, ?, 56, 92, 141
Answer and working
Answer B
The rule: the differences are squares: 9, 16, 25, 36, 49, 64. The missing term is 31.
-
₹8,910 is divided among Ravi, Sunita and Imran in the ratio 1 : 2 : 3. What is Ravi’s share?
Answer and working
Answer D
Total parts = 1 + 2 + 3 = 6. Ravi gets 1/6 × 8,910 = ₹1,485.
-
96 is what percent of 2,400?
Answer and working
Answer E
96 ÷ 2,400 × 100 = 4%.
-
The sum of the present ages of a father and his son is 58 years. 4 years ago, the father was 4 times as old as the son. How old is the son now?
Answer and working
Answer E
Let the son be s. Then (58 − s − 4) = 4(s − 4), so 70 = 5s and s = 14 years.
-
Simplify: 30 + 14 × 7 − 16 ÷ 8
Answer and working
Answer D
Division and multiplication first: 14 × 7 = 98 and 16 ÷ 8 = 2. Then 30 + 98 − 2 = 126.
-
Solve both equations and compare x and y.
I. x² − 4 = 0
II. y² − 10y − 11 = 0Answer and working
Answer E
I gives x = −2 or 2. II gives y = −1 or 11. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.
-
What is the value of 67² − 13²?
Answer and working
Answer B
a² − b² = (a + b)(a − b) = 80 × 54 = 4,320.
-
Ramesh can finish a piece of work in 30 days and Suresh can finish it in 70 days. Working together, how long will they take?
Answer and working
Answer E
In one day they do 1/30 + 1/70 = 1/21 of the work. Time = 30 × 70 ÷ (30 + 70) = 21 days.
-
Find the wrong number in the series: 3, 7, 15, 35, 63, 127, 255
Answer and working
Answer D
The rule: each term is the previous × 2 + 1. The term in place of 35 should be 31, so the wrong number is 35.
-
₹50,000 amounts to ₹55,125 in 2 years at compound interest, compounded annually. What is the rate of interest?
Answer and working
Answer C
(1 + R/100)² = 55,125/50,000 = 1.1025, so 1 + R/100 = 1.05 and R = 5%. Dividing the interest equally between the years (simple interest) gives a wrong answer.
-
A boat covers 48 km downstream in 3 hours and 24 km upstream in 2 hours. What is the speed of the boat in still water?
Answer and working
Answer D
Downstream speed = 48 ÷ 3 = 16 km/h; upstream = 24 ÷ 2 = 12 km/h. Boat = (16 + 12) ÷ 2 = 14 km/h.
-
Simplify: 63 + 4 × 12 − 96 ÷ 8
Answer and working
Answer A
Division and multiplication first: 4 × 12 = 48 and 96 ÷ 8 = 12. Then 63 + 48 − 12 = 99.
-
Which number replaces the question mark? 5, 11, 23, 47, ?, 191
Answer and working
Answer D
The rule: each term is the previous × 2 + 1. The missing term is 95.
-
A shopkeeper marks his goods 20% above the cost price and allows a discount of 20%. What is his profit or loss percent?
Answer and working
Answer A
Take CP = 100. Marked price = 120. After 20% off: 120 × 80/100 = 96. So 4% loss.
-
Simplify: 4⁄5 + 5⁄6 + 4⁄5
Answer and working
Answer B
Over the common denominator 30: the sum is 73⁄30. Adding tops and bottoms separately (17/21) is the trap.
-
What is √676 + √784 − √324?
Answer and working
Answer C
26 + 28 − 18 = 36.
-
A shopkeeper marks his goods 60% above the cost price and allows a discount of 20%. What is his profit or loss percent?
Answer and working
Answer E
Take CP = 100. Marked price = 160. After 20% off: 160 × 80/100 = 128. So 28% profit.
-
A sum of money doubles itself in 20 years at simple interest. What is the rate of interest per annum?
Answer and working
Answer D
The interest earned is 1 times the principal in 20 years. Rate = 1 × 100 / 20 = 5%.
-
Solve both equations and compare x and y.
I. x² + 14x + 45 = 0
II. y² − 2y − 3 = 0Answer and working
Answer C
I gives x = −9 or −5. II gives y = −1 or 3. Every x is smaller than every y: x < y.
-
Solve both equations and compare x and y.
I. x² − 14x + 45 = 0
II. y² − 8y − 20 = 0Answer and working
Answer E
I gives x = 5 or 9. II gives y = −2 or 10. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.