Logical Reasoning Test

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Logical Reasoning Test - 14

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Question 1
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Directions For Questions

Direction: Study the following information carefully and answer the questions given below:

...view full instructions

Statement: The pollution levels in Delhi is a great danger to the health of the elderly and the children. The Medical Council claims that if no remedy is found to the situation, most kids will suffer from asthma in the near future.

Which of the following represents the correct interpretation of the statement above?

A
Asthma is only caused by air pollution.

B
The young and the old are more vulnerable to polluted air borne diseases

C
Proper medical arrangements is not the solution required, air pollution should be curbed immediately.

D
Both A and C are correct.

E
Both B and C are correct.

Solution

Asthma is not only caused by air pollution, although it is one of the main factors behind it nowadays. Thus, option 1 is not correct.

The young and the elderly are prone to bad airborne diseases as they have a weak air filtering system. Pollution is to be fixed from the roots and medical treatment is not the way ahead.

Thus, Option E is correct (as options 2 and 3 are valid).
Question 2
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Directions For Questions

Direction: In the question below are given two statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

...view full instructions

Statements:

I. No car is bus.

II. No bus is truck.

Conclusions:

I. Some bus is car.

II. No truck is car.

A
Only I follows

B
Only II follows

C
Both I and II follows

D
Either I or II follows

E
None follows

Solution

The least possible Venn diagram for the given statements is as follows:

Conclusions:

I. Some bus are car → False (No car is a bus is a negative statement so, the positive conclusion doesn't follow)

II. No truck are car → False (there is no definite relation between truck and car)

So, Neither conclusion I nor II follows.
Question 3
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Directions For Questions

Direction: In the question below are given two statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

...view full instructions

Statement:

Some Table is Chair.

All Chair are Furniture.

Conclusion:

I. Some Table is Furniture.

II. All furniture is Table.

A
Only I follow

B
Only II follow

C
Both I and II follow

D
Either I or II follow

E
Neither I nor II follow

Solution

The least possible diagram for the given statements is as follow:

Conclusion:

I. Some Table is Furniture → True (As All Chair is Furniture and some part of Table is also Chair. So, some part of Table is also Furniture.)

II. All Furniture is Table → False ( All chair is Furniture but some part of Table is Chair. That's why all Furniture is Table is not possible.)

So, Only I follow.
Question 4
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Directions For Questions

Direction: In the question below are given two statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

...view full instructions

Statements:

I. Some caps are hat.

II. No hat is a shirt.

Conclusions:

I. Some shirts are not cap.

II. All shirts being cap is a possibility.

A
Only I follow

B
Only II follow

C
Both I and II follows

D
Either I or II follow

E
None follow

Solution

The least possible Venn diagram for the given statements is as follows:

Conclusions:

I. Some shirts are not cap → False (There is no definite relation between cap and shirt)

II. All shirts being cap is a possibility → True (Possibility is true shown in the diagram below)

So, only conclusion II follows.
Question 5
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Directions For Questions

Direction: In the question below are given two statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

...view full instructions

Statements:

Maximum roses are gmail.

Minimum biology are roses.

Conclusions:

I. 20% of biology are gmail.

II. No gmail is biology.

A
Either I or II follows

B
Only II follows

C
None follows

D
Both I and II follows

E
Only I follows

Solution

The least possible Venn diagram for the given statements is as follows:

Conclusions:

I. 20% of biology are gmail → False (Here 20% is taken as some, so unknown relations between elements will be false, but possibility can be true).

II. No gmail is biology → False (so unknown relations between elements will be false, but possibility can be true).

So, when two elements are same in the 2 conclusions and one conclusion is positive and second one is negative, then the condition either-or will follow.

So, either I or II follows.
Question 6
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The position of \(A\) in a row is 18th from the front while the position of \(B\) is 16th from the back. If the position of \(C\) is 24th from the front and he is exactly between \(A\) and \(B\), then how many persons are there in the queue?

A
45

B
46

C
47

D
48

E
49

Solution

Given,

The position of \(A\) in a row is 18th from the front while the position of \(B\) is 16th from the back.

A is 18th from the front and C is 24th.

Number of persons between A and C = 6

Since C is exactly in the middle of A and B, so number of persons between C and B = 6

\(\therefore\) Number of persons in the queue =(17 + 6 + 6 + 16) = 45
Question 7
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Directions For Questions

Direction: Study the information given below carefully and answer the questions that follow.

M, N, O, P, Q, R, S, and T are eight houses. N is 5 km North of M. O is 5 km West of N. P is 10 km South of O. Q is 10 km East of P and R is 5 km North of Q. S is situated just in middle of O and P while T is just in middle of P and Q.

...view full instructions

Distance between S and R is?

A
5 km

B
9 km

C
8 km

D
10 km

E
11 km

Solution

We have drawn the figure according to the information given in the question,

The distance between S and R is = SM + MR = 5 + 5 = 10 km

Thus, distance between S and R is 10 km.
Question 8
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Directions For Questions

Direction: Study the information given below carefully and answer the questions that follow.

M, N, O, P, Q, R, S, and T are eight houses. N is 5 km North of M. O is 5 km West of N. P is 10 km South of O. Q is 10 km East of P and R is 5 km North of Q. S is situated just in middle of O and P while T is just in middle of P and Q.

...view full instructions

What is the direction of Q with respect to S?

A
South-West

B
East

C
South-East

D
North-East

E
South

Solution

We have drawn the figure according to the information given in the question,

Thus, Q is the South-East of S.
Question 9
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Directions For Questions

Direction: Some statements are given followed by some conclusions. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions if any, follow from the given statements.

...view full instructions

Statements:

Only a few Minute is hour.

All Hour are Time.

Conclusions:

I. All Hour can be Minute.

II. Some Minute can be Time.

A
If only conclusion I follows

B
If only conclusion II follows

C
If either conclusion I or II follows

D
If neither conclusion I nor II follows

E
If both conclusions I and II follow

Solution

The least possible Venn diagram for the given statements is as follows-

Conclusions:

I. All Hour can be Minute → True (the possibility is true as shown below-)

II. Some Minute can be Time → False (From the diagram it is clear that ‘Some minutes are time’ is a definite conclusion and if the possibility is added with a definite conclusion then the conclusion does not follow).

Thus, the only conclusion I follow.
Question 10
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Directions For Questions

Direction: Some statements are given followed by some conclusions. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions if any, follow from the given statements.

...view full instructions

Statements:

All Phone are Laptop.

Only a few Laptop are Stylus.

No Laptop is Tablet.

Conclusions:

I. All Stylus can be Tablet.

II. No Tablet is Phone.

A
If only conclusion I follows

B
If only conclusion II follows

C
If either conclusion I or II follows

D
If neither conclusion I nor II follows

E
If both conclusions I and II follow

Solution

The least possible Venn diagram for the given statements is as follows-

Conclusions:

I. All Stylus can be Tablet → False (As some Stylus are Laptop and no Laptop are Tablet, so that Stylus which are Laptop will never be Tablet).

II. No Tablet is Phone → True (As ‘All phones are laptops’ and ‘No Laptop is Tablet’).

So, only conclusion II follows.