Practice Test: Logical Reasoning - 4


40 Questions MCQ Test Logical Reasoning for CLAT | Practice Test: Logical Reasoning - 4


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QUESTION: 1

Each group of question in this section is based on a set of conditions. Choose the response that most accurately and completely answer each question.

A panel reviews six contract bids- H, J, K, R, S, and T. No two bids have the same cost. Exactly one of the bids is accepted. The following conditions must hold:

1) The accepted bid is either K or R and is either the second or the third lowest in cost

2) H is lower in cost than each of J and K

3) If J is the fourth lowest in cost, than J is higher in cost than each of S and T

4) If J is not the fourth lowest in cost, than J is higher in cost than each of S and T

5) Either R or S is the fifth lowest in cost.

Q. Which one of the following could be an accurate list of the bids in order from lowest to highest in cost?

Solution:

Lowest Bid Possibility
1] S/T/H
2] S/T/H/K
3] S/T/H/K
4] S/T/H
5] R
Highest Bid 6] J

QUESTION: 2

Each group of question in this section is based on a set of conditions. Choose the response that most accurately and completely answer each question.

A panel reviews six contract bids- H, J, K, R, S, and T. No two bids have the same cost. Exactly one of the bids is accepted. The following conditions must hold:

1) The accepted bid is either K or R and is either the second or the third lowest in cost

2) H is lower in cost than each of J and K

3) If J is the fourth lowest in cost, than J is higher in cost than each of S and T

4) If J is not the fourth lowest in cost, than J is higher in cost than each of S and T

5) Either R or S is the fifth lowest in cost.

Q.  Which one of the following bids CANNOT be the fourth lowest in cost?

Solution:
QUESTION: 3

Read carefully the question and select the most appropriate answer.

Q.​
A straight line is defined as the shortest distance between any two points consisting of infinite number of dimensionless point. If this definition is acceptable, which of the following logically follows from the given definition?

Solution:
QUESTION: 4

Read the given information carefully and answer the questions based on them:

Six members of a family A, B, C, D, E and F are Psychologist, Manager, Advocate, Jeweller, Doctor and Engineer but not in the same order

  1. Doctor is the grandfather of F who is a Psychologist.
  2. Manager D is married to A.
  3. C, who is a Jeweller, is married to Advocate.
  4. B is the mother of F and E.
  5. There are two married couples in the family.

Q.
How many male members are there in the family?

Solution:

QUESTION: 5

If it is true that All men are honest and All politicians are men, for which among the following is it impossible to follow from the given premises?

Solution:

The correct option is A.

Other than A all the conclusions are possible from the given statements

QUESTION: 6

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 pastries are toffees.

All toffees are chocolates.

Conclusions:

I. Some chocolates are toffees.

II. Some toffees are not pastries.

Solution:

The correct option is D.

QUESTION: 7

Read carefully the question and select the most appropriate answer.

Q.​ 
Four probable statements are given (not necessarily related) which are to be arranged in the ascending order of probability. From among the alternatives, identify the correct arrangement.

A) The sun will rise tomorrow. (A)

B) This year there will be copious rainfall. (B)

C) Tomorrow it will rain. (C)

D) Every smoker will have attack before he or she turns 40 years. (D)

Solution:

The correct arrangement is C as according  to probability the statements are correctly arranged.

QUESTION: 8

Read carefully the question and select the most appropriate answer.Q.​​ Plato said that ‘government is the best government which governs least.’ What does this statement contradict from among the following statements?

Solution:

The correct option is B.
An able government legislates on every aspect of a citizen's life contradicts the given statement as the statement states that ‘government is the best government which governs least.’ but this statement talks about strictness by the government.

QUESTION: 9

In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.

Q.

95,115.5, 138, (___), 189

Solution:

EXP: 162.5


In difference +2 is added so Next is 22.5 +2= 24.5, 24.5+2=26.5

QUESTION: 10

Each group of question in this section is based on a set of conditions. Choose the response that most accurately and completely answer each question.

A panel reviews six contract bids- H, J, K, R, S, and T. No two bids have the same cost. Exactly one of the bids is accepted. The following conditions must hold:

1) The accepted bid is either K or R and is either the second or the third lowest in cost

2) H is lower in cost than each of J and K

3) If J is the fourth lowest in cost, than J is higher in cost than each of S and T

4) If J is not the fourth lowest in cost, than J is higher in cost than each of S and T

5) Either R or S is the fifth lowest in cost.

Q. 
Which one of the following bids CANNOT be the second lowest in cost?

Solution:

The correct option is A.
From the given statements, following arrangements are possible 
 J R S K T H 
 J S R K T H 
 J R S K T H 
 J S K R T H 
 J R T S  K H 
 J S T K R H 

QUESTION: 11

Mark the correct inference drawn in each case.

Q.​
Statement: Many smokes suffer from cancer.Inferences:

Solution:
QUESTION: 12

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.

Solution:

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.

QUESTION: 13

Read carefully the question and select the most appropriate answer.

Q.
​​Four judgments are given, out of which one is neither a crime nor a sin. Identify the same.

Solution:
QUESTION: 14

Read carefully the question and select the most appropriate answer.

Q.​
Consider the statement, ‘in a remote stellar system there may be a planet with some form of life or other.’ How do you evaluate this statement?

Solution:

The correct option is B.
The statement is unreasonable and illogical.

QUESTION: 15

Read carefully the question and select the most appropriate answer.

Q.
If it is true that no men are cannibals and cannibals do not exist, then which of the following alternatives must be accepted as true conclusion.

Solution:

EXP: No true conclusion is possible

 

QUESTION: 16

Read carefully the question and select the most appropriate answer.

Q.
While pursing research on thermodynamics, Carnot proposed ‘ideal heat engines’ which cannot be realised, with the help of which the second law of thermodynamics was formulated. What does the reference to ‘ideal heat engines’ suggest?

Solution:
QUESTION: 17

In a queue of 20 boys, D is fourteenth from the front and F is ninth from the bottom. How many boys are there between D and F?

Solution:

Question is based on minimum no. of students :-

Minimum No. of Students = 1

D’s rank from Right (R) = Total no. of Boys + 1 – D’s Rank from Left (L)

20 + 1 – 14

= 7 R.

∴7 R – 9 R = 1 student

QUESTION: 18

Read carefully the question and select the most appropriate answer.

Q.​​ 
Four statements are given. Arrange them in the descending order of probability using the alternatives provided below the statements.

1. It is probable that when three coins are tossed simultaneously all of them show heads. (A)

2. It is possible that when the same die with 6 faces is cast twice, it shows 2. (B)

3. When three packs of playing cards are mixed thoroughly, the card pulled out first may be spade king. (C)

4. When the first card pulled out from a well, mixed three packs of playing cards is spade king, the next card pulled out also may be spade king.

Solution:
QUESTION: 19

Read carefully the question and select the most appropriate answer.

Q.
Followers of a certain school of philosophy argued that it is impossible to conclusively verify a statement, it is meaningless. If so, against this background, choose the most appropriate answer from among the alternatives given below to determine the status of the statement – consciousness is the manifestation of divine will?

Solution:
QUESTION: 20

Mark the correct inference drawn in each case.

Q.
Statement: Most of the students of Navodaya Vidyalaya are of outstanding merit.Inferences:

Solution:
QUESTION: 21

Mark the correct inference drawn in each case.

Q.​
Statement: Examinations are going on in the Law Faculty. The Law Faculty is closed on Sunday.Inferences:

Solution:
QUESTION: 22

If is possible to make a meaningful word with the second the fourth, the sixth and the ninth letters of RECTIFICATION, what will be the third letter of the word? If no such word is possible mark X as your answer and if more than one word is possible mark M as your answer.

Solution:

EXP: M  RECTIFICATION          2, 4, 6, 9th Letter

Using these Four words E, T, F, A Two words formed i.e Feat, Fate. More than one word is formed so

QUESTION: 23

There is a certain relation between two given words on one side of::and one word is given on another side of::while another word is to be found from the given alternatives, having the same relation with this word as the words of the given pair bear. Choose the best alternative.

Q.
Watch: Second :: Calendar : _____

Solution:

EXP: Date

 1st is used to view 2nd

 

QUESTION: 24

Identify the conclusion which follows from the premises given below:Premises:If Rajiv has committed the crime, he will be arrested.If he is arrested, then he will be prosecuted.If he is prosecuted, then he will be imprisoned.Therefore,

Solution:
QUESTION: 25

Read the given information carefully and answer the questions based on them:

Six members of a family A, B, C, D, E and F are Psychologist, Manager, Advocate, Jeweller, Doctor and Engineer but not in the same order

  1. Doctor is the grandfather of F who is a Psychologist.
  2. Manager D is married to A.
  3. C, who is a Jeweller, is married to Advocate.
  4. B is the mother of F and E.
  5. There are two married couples in the family.

Q.
What is the profession of E?

Solution:

QUESTION: 26

Read carefully the question and select the most appropriate answer.

Q.
It is argued that all democratic systems of government breed corruption, but at the same time protect human rights. If so, which of the following alternatives is evidently false?

Solution:

The correct option is A.
It is the best suitable option.Because it is given in question that democracy is corrupt but it still protects human rights but the C option says that democracy is corrupt and does not protect human rights which is false. And option D is not correct at all. Option B gives priority to corruption.
 

QUESTION: 27

Read carefully the question and select the most appropriate answer.

Q.​ 
If it is true that neither Rama is a brother of Krishna, nor is he a lecturer, then which one of the following statements is true?

Solution:

QUESTION: 28

In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.

Q. 1, 3, 4, 8, 15, 27, (___)

Solution:

EXP: 50

We have calculated difference but no conclusion arrived. We see

1 = 1

3 = 3

4 = 3+1

8 = 4+3+1

15 = 8+4+3

27 =15+8+4

50 = 27+15+8

By Adding last three numbers, we get the value of next no.

QUESTION: 29

If Reena says, “Anjali's father Raman is the only son of my father-in-law Ramanand”, then how is Piyu, who is the sister of Anjali, related to Ramanand ?​

Solution:

Only son of Reena's father-in-law Ramanand is Reena's husband. So, Raman is Reena's husband and Anjali & Piyu are his daughter's, Thus, Piyu is Grand-daughter of Ramanand.

QUESTION: 30

Read carefully the question and select the most appropriate answer.

Q.
Some philosophers argue that what does not exist is not knowable. Which of the following alternatives is implied by this claim?

Solution:

The correct option is A
Different scientists and discoverers have different points of view. The things that still don't exist are knowable. Example - life on mars.

QUESTION: 31

Jenny walked 2.5 km’s towards North and turned towards West. After covering 2 km’s he turned to South and walked 1.5 km’s. He then turned to East and covered 2 km’s. To which direction Jenny is standing from the original point.

Solution:

North

QUESTION: 32

Read the questions carefully and mark which one is right.

Q.
While pursuing research on thermodynamics, Carnot proposed ‘ideal heat engines’, which cannot be realized, with the help of which the second law of thermodynamics was formulated.

What does the reference to ‘ideal’ heat engines suggest?

Solution:
QUESTION: 33

Read carefully the question and select the most appropriate answer.

Q.
Identify the statement which is false if it is true that no beings other than men are intelligent.

Solution:

QUESTION: 34

Read the questions carefully and mark which one is right.

Q.
Plato said ‘that government is the best government which governs least’. What does this statement contradict from among the following statements?

Solution:

The correct option is B.
The question states that the best government is one that governs the least that means it talks about the freedom given by the government to the citizens but on the other hand this option talks about the restrictions by the government.
 

QUESTION: 35

There is a certain relation between two given words on one side of::and one word is given on another side of::while another word is to be found from the given alternatives, having the same relation with this word as the words of the given pair bear. Choose the best alternative.

Q.
Student: Teacher :: Player:_____

Solution:

EXP: Coach

                 2nd is guide of 1st

QUESTION: 36

In a certain code language BLUNDER is written as LBNURED. Then how will QUICKER be written in that code?

Solution:

QUESTION: 37

Assume that there are three statements followed by several conclusions. You have to take the given statements to be true, even if they seem to be at variance from commonly-known facts and then decide which of the given conclusion/s logically follows.
Statements :
I. All Pens are Tables
 II. Some tables are rulers.
III. Some rulers are chalk.

Conclusion :
I. Some tables are chalk.
II. Some pens are chalk.
III. Some rulers are pens.
IV. Some chalk are rulers

Solution:


This diagram tells us that only one condition follows i.e. some chalk are rulers.

QUESTION: 38

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 boys are men.

No men is black.

Conclusions:

I. Some boys are not black.

II. Some men are boys.

Solution:

The correct option is A.
Since one premise is negative, the conclusion must be negative. So. II does not follow
and only I follow.

QUESTION: 39

Read carefully the question and select the most appropriate answer.

Q.
​​Four judgments are given out of which one judgment regards the action as both crime and sin. Identify the same.

Solution:
QUESTION: 40

Read carefully the question and select the most appropriate answer.

Q.​ 
​In the context of crime committed, four evidences are considered which are mentioned below. Arrange them in the increasing order of their weightage.

1. Computer-generated image based on the description given by a neighbour.

2. A piece of paper at the site of crime containing an address of suspect.

3. Matching of finger prints.

4. Tracing the call made by the suspect to the victim

Solution:
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