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All questions of Practice Test: Logical Reasoning for Judiciary Exams Exam

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Fifty books belonging to different subjects, viz., History (8), Geography (7), Literature (13), Psychology (8) and Science (14), are placed on a shelf. They are arranged in an alphabetical order subject to the condition that no two books of the same subject are placed together to so long as books of other subjects are available. Unless otherwise mentioned, all counting is done from the left.​
Q.
Which subjects does the 40th book belong to?
  • a)
    Science                   
  • b)
    Psychology
  • c)
    History                    
  • d)
    Literature.
Correct answer is option 'A'. Can you explain this answer?

Rajendra Advocate answered
I think the correct answer is (d). Because Geography books are only 7 and the series of geography book ends by 35 books only . Then comes history, literature , psychology,science as 36,37,38,39 and following that series the 40 th book must be literature .

Directions: Read the problem and select the right answer.
I. Raman lives in Joint Hindu Family consisting of many relatives. Raman’s notes show the following relationships between the relatives.
Raman’s father Varadhan has only one brother, Krishnan, who is not married. Lakshmi is Varadhan’s wife. Parvathi is Lakshmi’s mother and she lives with Lakshmi.
Raman’s house is called as Girija Krupa, named after Kaman’s grandmother.
Girija has one grand-daughter by name Shrita and two grandsons one of whom has moved out of the joint family and lives in nearby town.
Q.
If Parvathi’s brother Ganeshan had been alive
  • a)
    He would be Lakshmi’s uncle
  • b)
    He would be Krishnan’s uncle
  • c)
    He would be Raman’s cousin
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?

Sarika chauhan answered
Explanation:

  • Varadhan has only one brother, Krishnan.

  • Lakshmi is Varadhan’s wife.

  • Parvathi is Lakshmi’s mother.

  • Parvathi’s brother is Ganeshan.


Therefore, if Ganeshan had been alive, he would be Lakshmi’s uncle. Option A is correct.

The following questions comprise of one or more statements. Answer the questions on the basis of the given statement(s). Accept the factual assumptions required by the question, even if you believe that the statement is false.
Q.
Statement:
I. Democrats are secularists.
Which of the following statements, if true, would show that the above statement is false?
  • a)
    My father is a secularist but he is not a democrat.
  • b)
    My father is a democrat but he is not secularist.
  • c)
    My father is a democrat and he is secularist.
  • d)
    My father is neither a democrat nor a secularist.
Correct answer is option 'B'. Can you explain this answer?

Aishwarya Rajput answered
The statement clearly shows us that democrats are secularists(also all democrats are secularists), but that doesn't mean that secularists are democrats. And definitely option B is incorrect, rather you should go for option 'C' or 'A'.

Six students A, B, C, D, E, and F are to make a presentation, each on a day. Three of them will make their presentations in the morning session before the lunch break whereas, the other three will be presenting it in the afternoon session. The presentations have to be scheduled in such a way that they comply with the following restrictions:           
B should make his presentation immediately before C’s presentation.           
Their presentations cannot be separated by the lunch break.          
 D must be either the first or the last student to make the presentation.
Q.  B could be placed for any of the following places in the order of presenters except
  • a)
    first                         
  • b)
    second
  • c)
    third                                   
  • d)
    fifth.
Correct answer is option 'C'. Can you explain this answer?

Anaya Patel answered
Already given that 'D' must be in First or last, so ignore option (a)&(d). lf B takes the third position then C have to takes the fourth position which is contridiction. so option (c) is correct

Select the most appropriate answer.
Q. ​A study has shown that a large number of Indians are still unaware that smoking injures their health. This is so despite the statutory warning printed on every cigarette packet. The logical conclusion seems to be that the statutory warnings have had absolutely no effect. Which one of the following, if true, would refute the argument in the above passage?
  • a)
    Most people would not stop cigarette smoking inspite of statutory warning.
  • b)
    There a few people who recoil from smoking when they see the statutory warning
  • c)
    Cigarette addiction is too strong to resist.
  • d)
    none
Correct answer is option 'B'. Can you explain this answer?

Falguni Sanghvi answered
Yes because in the above text it is given that many people are not aware so it means that only a handful of people recoil after seeing the ad. as most are ignorant or unawre

Six students A, B, C, D, E, and F are to make a presentation, each on a day. Three of them will make their presentations in the morning session before the lunch break whereas, the other three will be presenting it in the afternoon session. The presentations have to be scheduled in such a way that they comply with the following restrictions:           
B should make his presentation immediately before C’s presentation.           
Their presentations cannot be separated by the lunch break.          
 D must be either the first or the last student to make the presentation.
Q. In case F is to make his presentation immediately after D make his presentation, C could be scheduled for which of the following places in the order of presenters?
  • a)
    first                         
  • b)
    second
  • c)
    third                                   
  • d)
    fifth
Correct answer is option 'D'. Can you explain this answer?

Faizan Khan answered
The queue would like be :-
D F A - B C E
so position of c be 5th in the presenters
 

In each question below are given two statements followed by two conclusions numbered I and II. You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
Q. 
Statement: Some calendars are sticks.
No stick is flower.
Conclusions:
I. Some calendars are flowers
II. No calendar is flower.
  • a)
    if only conclusion I follows;
  • b)
    if only conclusion II follows;
  • c)
    if both I and II follow ​
  • d)
    if neither I nor II follows.
Correct answer is option 'D'. Can you explain this answer?

Dia Mehta answered
The correct option is D.
Since one premise is particular, the conclusion must be particular. So, II cannot follow.
Since one premise is negative, the conclusion must be negative. So, I cannot follow.

The following questions comprise of one or more statements. Answer the questions on the basis of the given statement(s). Accept the factual assumptions required by the question, even if you believe that the statement is false.
Q. Statements:
I: Cheese is bad for people with high-cholesterol.
II. Sumeet does not eat cheese.
Assuming that (i) and (ii) are true, which of the following statement follows?
  • a)
    Sumeet has high-cholesterol.
  • b)
    Cheese is bad for Sumeet.
  • c)
    People with high-Cholesterol do not eat cheese.
  • d)
    None of the above.
Correct answer is option 'C'. Can you explain this answer?

Sejal Chhablani answered
Answer c is correct as by the first statement it is clear people who have high cholesterol do not eat cheese and 2nd statement sumeet doesnot eat cheese clears that may be summet has high cholesterol therfore people with high cholesterol do not eat cheese

Six students A, B, C, D, E, and F are to make a presentation, each on a day. Three of them will make their presentations in the morning session before the lunch break whereas, the other three will be presenting it in the afternoon session. The presentations have to be scheduled in such a way that they comply with the following restrictions:           
B should make his presentation immediately before C’s presentation.           
Their presentations cannot be separated by the lunch break.          
 D must be either the first or the last student to make the presentation.
Q In case F and E are the fifth and sixth presenters respectively then which of the following must be true?
  • a)
    A is first in the order of presenters
  • b)
    A is third in the order of presenters
  • c)
    A is fourth in the order of presenters
  • d)
    B is first in the order of presenters
Correct answer is option 'C'. Can you explain this answer?

Faizan Khan answered
he queue would be like....
D B C - A F E
A is the 4th one to give presentation
 

Passage - 2
The human mind is wired to see patterns. Not only does the brain process information as it comes in, it also stores insights from all your past experiences. Your intuition has been developing and expanding for as long as you've been alive. Every interaction, happy or sad, is cataloged in your memory. Intuition draws from that deep memory well to inform your decisions going forward. In other words, intuitive decisions are based on data, in a way. When we subconsciously spot patterns, the body starts firing neurochemicals in both the brain and gut. These "somatic markers" are what give us that instant sense that something is right ... or that it's off. Not only are these automatic processes faster than rational thought, but your intuition draws from decades of diverse qualitative experience (sights, sounds, interactions, etc.) - a wholly human feature that big data alone could never accomplish. It's also faster than rational thought, which means intuition is a necessary skill that can help decision-making when time is short and traditional analytics may not be available. Many researchers, including machine learning experts and data scientists, are embracing the role hunches play in breakthrough thinking. Intuition is now considered simply another kind of data-one that's no less valuable than traditional analytics. After all, algorithms are created by people and therefore subject to human error. [Extracted with edits from: "The science of intuition can help you understand how to use it" - by Melody Wilding, Quartz at Work, March 2018]
Which one of the following if true, most weakens the argument made by the author?
  • a)
    Decades of rational thinking and data analytical skills is necessary to hone the ability to apply intuition.
  • b)
    Intuitive decisions are not made haphazardly, or merely on a gut feeling; an intuitive decisionmaking style is developed through experience.
  • c)
    Those who normally prefer combining intuitive decisions with analysis made the best decisions in crisis situations.
  • d)
    Organizations need good leadership, not more control, in order to develop the staff's ability to make good decisions.
Correct answer is option 'A'. Can you explain this answer?

Aryan Khanna answered
The author in the passage talks about two kinds of decision making - one based on rational thinking and the other based on intuition. The author states that intuition is based on experience-one that can be developed through diverse qualitative experience. It is differentiated from rational thought which is slower than intuition. If answer choice (a) is true, then rational thinking ability is necessary to develop intuition. Without rational thinking ability, the ability to intuition is not possible. This answer choice, by making rational thinking necessary for intuition, weakens the author argument.
Incorrect Answers
(b)- This supports author's argument. The author says that intuition is developed through experience which is what answer choice (b) also says.
(c)- This answer choice is specific to crisis situations. The answer choice says that in such a situation both intuition and analysis is important. This is not inconsistent with the views of the author and does not weaken the author's argument.
(d)- Answer choice (d), even if true, does not impact the argument. All that this answer choice says is that organisation requires good leadership. This does not address any of the arguments presented by the author.

6, 11, 21, 36, 56, ?
  • a)
    42                           
  • b)
    81
  • c)
    51                           
  • d)
    91
Correct answer is option 'B'. Can you explain this answer?

Alok Malik answered
Given series: 6, 11, 21, 36, 56, ?

To find the next number in the series, we need to identify the pattern followed by the series.

Pattern:

If we observe the series carefully, we can see that each number in the series is obtained by adding the consecutive odd numbers starting from 1.

6 = 1 + 5
11 = 1 + 5 + 5
21 = 1 + 5 + 5 + 10
36 = 1 + 5 + 5 + 10 + 15
56 = 1 + 5 + 5 + 10 + 15 + 20

So, the next number in the series can be obtained by adding the next odd number, which is 25, to the previous number in the series.

Therefore, the next number in the series is:

56 + 25 = 81

Hence, the correct answer is option 'B' (81).

Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group?
Q. 6,5,24,25,144,(?)
  • a)
    155   
  • b)
    160
  • c)
    170                     
  • d)
    175
Correct answer is option 'D'. Can you explain this answer?

Zeenat Singh answered
Grouping:

- 6, 24, 144: These are all perfect squares.
- 5, 25: These are both perfect squares of prime numbers.
- 175: This doesn't fit into any of the above categories.

Therefore, the answer is option D, 175.

Examine the following relationship among members of a family of six persons A, B, C, D, E, and F
(a) The number of males equals that of females
(b) A and E are sons of F
(c) D is the mother of two, one boy and one girl
(d) B is the son of A
(e) There is only one married couple in the family at present
Q.
Which of the following inferences can be drawn from the above?
  • a)
    A, B and C are females
  • b)
    A is the husband of D
  • c)
    E and F are children of D
  • d)
    D is the granddaughter of F
Correct answer is option 'B'. Can you explain this answer?

Dia Mehta answered
Clearly, there are three males and three females. Now, A, E and B are sons and hence male. So, C, D and F are females.
D has one male and one female child. Clearly, A and D form a couple having two children, namely B and C. Hence, A is the husband of D.

Select the most appropriate answer.
Q. No one who is suffering from a common cold needs to consult a doctor, because the cold will subside on its own. In recent times, however, there have been number of instance of typhoid, beginning as common cold, would soon aggravate and endanger the life of patient. The treatment at a later stage is extremely difficult and painful. It is highly advisable, therefore that sufferers seek medical attention when the first symptoms occur.The flaw in the above reasoning is that-
  • a)
    the author draws a general conclusion from inadequate evidence
  • b)
    the author assumes that similar effects must have similar causes
  • c)
    the author makes contradictory claims
  • d)
    none
Correct answer is option 'B'. Can you explain this answer?

Nishant Upadhyay answered
First, the author says that no one suffering from cold should consult a doctor because it would subside itself and in the end, he says it is highly advised to seek medical attention. I guess that's contradictory

In each of the following questions, Four words have been given, out of which four are alike in some manner and the fifth one is different. Choose out the odd one out.
a)Sleet
b)Fog
c)Hailstone
d)Vapour
Correct answer is option 'D'. Can you explain this answer?

Akansha jain answered
Odd One Out: Sleet, Fog, Hailstone, Vapour

Explanation:
To identify the odd one out, we need to consider the similarities and differences among the given words. Let's analyze each word:

1) Sleet: Sleet refers to a form of precipitation that consists of small ice pellets. It occurs when raindrops freeze before reaching the ground. Sleet is a type of frozen precipitation.

2) Fog: Fog is a cloud-like mass that forms near the ground when the air is cool and moisture condenses. It reduces visibility and is composed of tiny water droplets suspended in the air.

3) Hailstone: Hailstone refers to a solid precipitation in the form of ice pellets. It is larger and more solid than sleet. Hailstones are formed within thunderstorm clouds when there are strong updrafts that carry raindrops upward into extremely cold regions of the atmosphere, causing them to freeze.

4) Vapour: Vapour is a gaseous state of a substance, typically water, when it is below its boiling point. It is the invisible form of water that exists in the atmosphere.

Now let's analyze the similarities and differences among these words:

- Sleet, Hailstone, and Vapour all refer to different forms of precipitation, while Fog is a type of atmospheric condition.

- Sleet and Hailstone are both forms of frozen precipitation, but Vapour and Fog are not frozen.

- Hailstone is different from Sleet and Vapour as it is larger and formed within thunderstorm clouds.

Based on these observations, we can conclude that the odd one out is option D) Vapour. While all the other options refer to different forms of precipitation, Vapour is a gaseous state of water and not a form of precipitation.

An employee has been assigned the task of allotting offices to six of the staff members. The offices are numbered 1-6. The offices are arranged in a row and they are separated from each other by six foot high dividers. Hence, voices, sounds and cigarette smoke flow easily from one office to another .
            Miss Rani needs to use the telephone quite often throughout the day. Mr. Mohan and Mr.Boman need adjacent offices as they need to consult each other often while working. Miss Hema, is a senior employee and has to be allotted the office number 5, having the biggest window.
            Mr. Dhiraj requires silence in the offices next to his Mr. Tony, Mr. Mohan and Mr. Dhiraj are all smokers. Miss Rani finds tobacco smoke allergic and consecutively the offices next to hers to be occupied by non-smokers.
            Unless specifically stated all the employees maintain an atmosphere of silence during office hours.
​Q. ideal candidate to occupy the office farthest from Mr. Boman would be
  • a)
    Miss Hema             
  • b)
    Mr. Mohan
  • c)
    Mr. Tony                 
  • d)
    Mr. Dhiraj.
Correct answer is option 'D'. Can you explain this answer?

Anaya Patel answered
Rani is allergic to tobacco smoke and uses telephone frequently while Dhiraj needs silence and he smoke.

An employee has been assigned the task of allotting offices to six of the staff members. The offices are numbered 1-6. The offices are arranged in a row and they are separated from each other by six foot high dividers. Hence, voices, sounds and cigarette smoke flow easily from one office to another .
            Miss Rani needs to use the telephone quite often throughout the day. Mr. Mohan and Mr.Boman need adjacent offices as they need to consult each other often while working. Miss Hema, is a senior employee and has to be allotted the office number 5, having the biggest window.
            Mr. Dhiraj requires silence in the offices next to his Mr. Tony, Mr. Mohan and Mr. Dhiraj are all smokers. Miss Rani finds tobacco smoke allergic and consecutively the offices next to hers to be occupied by non-smokers.
            Unless specifically stated all the employees maintain an atmosphere of silence during office hours.
​Q. In the event of what occurs, within a period of one month since the assignment of the offices, would a request for a change in office be put forth by one or more employees?
  • a)
    Mr. Dhiraj quitting smoking
  • b)
    Miss Rani needing silence in the office(s) next to her own
  • c)
    Mr. Bornan suffering from laryngitis
  • d)
    Mr. Tony taking over the duties formely taken care of by Miss Rani.
Correct answer is option 'D'. Can you explain this answer?

Dia Mehta answered
The correct answer is D. Mr. Tony taking over the duties formely taken care of by Miss Rani.

An employee has been assigned the task of allotting offices to six of the staff members. The offices are numbered 1-6. The offices are arranged in a row and they are separated from each other by six foot high dividers. Hence, voices, sounds and cigarette smoke flow easily from one office to another .
            Miss Rani needs to use the telephone quite often throughout the day. Mr. Mohan and Mr.Boman need adjacent offices as they need to consult each other often while working. Miss Hema, is a senior employee and has to be allotted the office number 5, having the biggest window.
            Mr. Dhiraj requires silence in the offices next to his Mr. Tony, Mr. Mohan and Mr. Dhiraj are all smokers. Miss Rani finds tobacco smoke allergic and consecutively the offices next to hers to be occupied by non-smokers.
            Unless specifically stated all the employees maintain an atmosphere of silence during office hours.
​Q. The ideal office for Mr. Mohan would be
  • a)
    2                             
  • b)
    6
  • c)
    1                             
  • d)
    3
Correct answer is option 'D'. Can you explain this answer?

Faizan Khan answered
From the given information the ideal office for Mr. Mohan would be 3. 

Neelam who is Rohit’s daughter tells to Indu, “Your mother Rita is the younger sister of my father, who is the third child of Sohanji” how is Sohanji related to Indu?
  • a)
    Maternal uncle                    
  • b)
    Father
  • c)
    Grandfather            
  • d)
    Father in law
Correct answer is option 'C'. Can you explain this answer?

Urvashi shah answered
Explanation:

Sohanji is the father of Neelam's father and the third child of Sohanji. Therefore, Neelam's father is one of Sohanji's children.

Neelam tells Indu that her mother Rita is the younger sister of Neelam's father. This means that Rita is also one of Sohanji's children.

Since Sohanji is the father of both Neelam's father and Indu's mother Rita, he is the grandfather of both Neelam and Indu.

Therefore, the correct answer is option C: Grandfather.

For each of the following questions, there are two words and four alternative answers. In each of the alternative answers there are two words. Find out the alternative whose two words have the same relation as in the two words given in the beginning,
Q. Mistake: Void
  • a)
    Misrepresentation:Voidable
  • b)
    Contract: Enforceable
  • c)
    Counter-offer: Void
  • d)
    Agreement: Voidable
Correct answer is option 'B'. Can you explain this answer?

Mayank Chaudhary answered
Relation between Mistake and Void:
- Mistake is a situation where one or both parties in a contract have misunderstood or misrepresented something, leading to an agreement that is not valid or enforceable.
- Void is a term used to describe an agreement or contract that is not legally binding for some reason, such as a mistake, fraud, or illegality.

Possible alternatives:
a) Misrepresentation: Voidable
- Misrepresentation is a situation where one party in a contract has made a false statement or concealed important information, leading to an agreement that is not valid or enforceable.
- Voidable is a term used to describe an agreement or contract that can be legally avoided or cancelled by one or both parties.

b) Contract: Enforceable
- A contract is a legally binding agreement between two or more parties.
- Enforceable is a term used to describe an agreement or contract that can be legally enforced by one or both parties.

c) Counter-offer: Void
- A counter-offer is a new offer made by one party in response to an initial offer from another party.
- Void is a term used to describe an agreement or contract that is not legally binding for some reason, such as a mistake, fraud, or illegality.

d) Agreement: Voidable
- An agreement is a mutual understanding or arrangement between two or more parties.
- Voidable is a term used to describe an agreement or contract that can be legally avoided or cancelled by one or both parties.

Correct answer:
The correct answer is option 'B', Contract: Enforceable. This is because the relationship between Mistake and Void is that Mistake makes an agreement Void, whereas Enforceable means that a contract can be legally enforced, which is the opposite of Void. Similarly, Mistake makes a contract unenforceable, which is the same relationship as between Contract and Enforceable. Therefore, option 'B' is the alternative whose two words have the same relation as in the two words given in the beginning.

Three men (Tej, Partha, and Jeeva) and three women (Eleena, Anita and Kavita) are spending a few months at a hillside. They are to stay in a row of nine cottages, each one living in his or her own cottage. There is nobody else staying in the same row of houses.
1) Anita, Tej and Jeeva do not want to stay in any cottage, which is at the end of the row.
2) Anita is unwilling to stay beside any occupied cottage.
3) Kavita is next to Partha and Jeeva.
4) Between Anita and Jeeva’s cottage-there is just one vacant house.
5) None of the girls occupy adjacent cottages.
6) The house occupied by Tej is next to an end cottage.
Q.
How many of them occupy cottages next to a vacant cottage?
  • a)
    2                             
  • b)
    3
  • c)
    4                             
  • d)
    5
Correct answer is option 'C'. Can you explain this answer?

Faizan Khan answered
B is the correct option. According to the question - Jeeva ..Anita..tej..eleena are all occupying cottages next to vacant one..
acc to the question..the respected positions are..
1. Kavita 2.partha 3.jeeva 4. Vacant  5.anita 6. Vacant 7.tej 8. Vacant 9. eleena

Directions: Read carefully the problem and select the most appropriate answer.
Q.
We act in haste and repent at leisure. The so called modern and scientific methods of farming have proved to be damaging to the environment and are otherwise unsustainable.Which one of the following would be the logical implication of the above statements?
  • a)
    The new methods of farming propagated over the years are unscientific.
  • b)
    Mono-culture has affected bio-diversity.
  • c)
    Erosion of land fertility and increase in the level of damaging chemicals are a result of these new methods.
  • d)
    None of these
Correct answer is option 'C'. Can you explain this answer?

Anaya Patel answered
The correct option is C.
From the following lines it is clear ‘ The so called modern and scientific methods of farming have proved to be damaging to the environment

Strict gun control laws cause decrease in violent crime, in the six months since the city council passed a gun control law, armed robberies in City X have dropped by 19 percent.
Q.
Which of the following statements, if true, would strengthen the argument above?
I. Before the law was passed, the number of armed robberies had been steadily increasing.
II. The more that laws are used to prevent a crime, the less likely that crime is to occur.
III. Three-fourths of all violent crimes involve the use of a gun.
  • a)
    I only                      
  • b)
    III only
  • c)
    I and II only            
  • d)
    II and III only
Correct answer is option 'A'. Can you explain this answer?

Nishant Upadhyay answered
Option II is wrong because it's too vague if laws would always prevent crime 
Option III is wrong because the assumption talks of violent crime but the statement is about armed robberies only 
It's my take on this question i can be wrong too :)

Chapter doubts & questions for Practice Test: Logical Reasoning - Logical Reasoning for Judiciary Exam 2025 is part of Judiciary Exams exam preparation. The chapters have been prepared according to the Judiciary Exams exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Judiciary Exams 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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