Logical Reasoning Test-5

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Logical Reasoning Test-5

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Weekly Quiz Competition

Question 1
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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.
Question 2
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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 democrat but he is not secularist.

B
My father is a democrat and he is secularist

C
My father is neither a democrat nor a secularist.

D
My father is a secularist but he is not a democrat.

Solution

The correct option is A.
The statement clearly shows us that democrats are secularists(also all democrats are secularists), but that doesn 't mean that secularists are democrats.
Question 3
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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 :
“Where there is a cloud, there is a rain,”Which of the following statements, if true, would show that the above statement is false?

A
Sometimes there is cloud, but there is no rain.

B
Sometimes there is rain, but there is no cloud.

C
There is no rain where there is no cloud.

D
None of the above
Question 4
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Read the following information carefully and then answer the questions.
Four friends W, X, Y and Z are students of Class 10^th . W and X are good in Hindi but poor in English. W and Y are good in Science but poor in Mathematics. Y and Z are good in English but poor in Social Studies. Z and X are good in Mathematics as well as in Science.
Q.
Who amongst the following friends is not good in Mathematics but good in Hindi?

A
W

B
Y

C
X

D
Z

Solution

The correct answer is A as as
Good students are
Hindi = W , X
Science = W, Y Z X
English = Y Z
Mathematics = Z,X
SO W is not good in maths and in english too.
Question 5
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Read the following information carefully and then answer the questions.
Four friends W, X, Y and Z are students of Class 10^th . W and X are good in Hindi but poor in English. W and Y are good in Science but poor in Mathematics. Y and Z are good in English but poor in Social Studies. Z and X are good in Mathematics as well as in Science.
Q. Which of the following pairs of friends are good, both in English and Science?

A
W and Y

B
W and Z

C
Y and Z

D
Z and X

Solution

The correct answer is C as W,X=Hindi(good) Eng(poor)
W,Y=Science(good)Maths(poor)
Y,Z=English(good)SSt(poor)
Z,X=Maths(good)Science(good)
Conclusion-
Y,Z=English(good)
Y,Z=Science(good)
therefore, option c) is correct
Question 6
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Read the following information carefully and then answer the questions.
Four friends W, X, Y and Z are students of Class 10^th . W and X are good in Hindi but poor in English. W and Y are good in Science but poor in Mathematics. Y and Z are good in English but poor in Social Studies. Z and X are good in Mathematics as well as in Science.
Q.
Which of the following statements is definitely true?

A
Y and Z are good in English as well as in Hindi

B
All four friends are good in Science

C
W is good in Social Studies, Hindi and Science

D
Y is not good in Mathematics, Hindi and Social Studies.

Solution

The correct option is B.
W and Y are good in Science
Z and X are good in Mathematics as well as in Science.
So this means all the four friends are good in science.
Question 7
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Select the statement which logically follows the two given statements.
Q.
Statements :
I. No athletes are vegetarians.
II. All players are athletes.
III. Therefore ……….

A
No players are vegetarians

B
All players are vegetarian

C
Some players are vegetarian

D
All vegetarians are players

Solution

Given is that no athlete is vegetarian and all players are athletes, so all players (which is a subset of athlete set) are non vegetarian
Question 8
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Select the statement which logically follows the two given statements.
Q.
Statements :
I. All persons who have done any creative work can be responsible critics
II. Z has not done any creative work
III. Therefore ………….

A
Z can be a responsible critic

B
Z cannot be a responsible critic

C
Z can become a responsible critic

D
Z cannot become a responsible critic
Question 9
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Select the statement which logically follows the two given statements.
Q.
Statement :
I. One who has squared a circle is not a mathematician
II. Therefore ………..

A
No one who has squared a circle is a mathematician

B
All non-mathematicians have squared a circle

C
Some mathematicians have squared a circle

D
All mathematicians square a circle

Solution

‘One who has squared a circle is not a mathematician ’can also be re-written as ‘No one who has squared a circle is a mathematician ’.
Question 10
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Directions: Read the problem and select the right answer.
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.
Parvathi is Shrita ’s

A
Mother

B
Aunt

C
Paternal Grandmother

D
Maternal Grandmother

Solution

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Logical Reasoning Test-5

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Logical Reasoning Test-5

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Question 1

Sumeet has high-cholesterol.

Cheese is bad for Sumeet.

People with high-Cholesterol do not eat cheese.

None of the above.

Question 2

My father is a democrat but he is not secularist.

My father is a democrat and he is secularist

My father is neither a democrat nor a secularist.

My father is a secularist but he is not a democrat.

Solution

Question 3

Sometimes there is cloud, but there is no rain.

Sometimes there is rain, but there is no cloud.

There is no rain where there is no cloud.

None of the above

Question 4

W

Y

X

Z

Solution

Question 5

W and Y

W and Z

Y and Z

Z and X

Solution

Question 6

Y and Z are good in English as well as in Hindi

All four friends are good in Science

W is good in Social Studies, Hindi and Science

Y is not good in Mathematics, Hindi and Social Studies.

Solution

Question 7

No players are vegetarians

All players are vegetarian

Some players are vegetarian

All vegetarians are players

Solution

Question 8

Z can be a responsible critic

Z cannot be a responsible critic

Z can become a responsible critic

Z cannot become a responsible critic

Question 9

No one who has squared a circle is a mathematician

All non-mathematicians have squared a circle

Some mathematicians have squared a circle

All mathematicians square a circle

Solution

Question 10

Mother

Aunt

Paternal Grandmother

Maternal Grandmother

Solution

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