CBSE Class 11 Mathematics Chapter 14 Mathematical Reasoning Multiple Choice Questions with Answers. MCQ Class 11 Mathematics Mathematical Reasoning with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Mathematics Mathematical Reasoning MCQs with Answers to know their preparation level.
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MCQ Class 11 Mathematics Mathematical Reasoning with Answers - Set - 1
Question 1:
Which of the following is a compound statement
(a) Sun is a star
(b) I am a very strong boy
(c) There is something wrong in the room
(d) 7 is both odd and prime number.
Correct Answer – (D)
A compound statement is connected with And , or , etc.
So, the statement 7 is both odd and prime number is a compound statement.
Question 2 :
If (p or q) is true, then
(a) p is true and q is false
(b) p is true and q is true
(c) p is false and q is true
(d) All of the above
Correct Answer – (D)
(p or q) is false when both p and q are false otherwise it is true.
Question 3 :
The contra-positive of the statement if p then q is
(a) if ~p then q
(b) if p then ~q
(c) if q then p
(d) if ~q then ~p
Correct Answer – (D)
Given statement is if p then q
Now, contra-positive of the statement is:
if ~q then ~p
Question 4 :
The contra-positive of the statement If a triangle is not equilateral, it is not isosceles is
(a) If a triangle is not equilateral, it is not isosceles
(b) If a triangle is equilateral, it is not isosceles
(c) If a triangle is not equilateral, it is isosceles
(d) If a triangle is equilateral, it is isosceles
Correct Answer – (D)
Given, statement is:
If a triangle is not equilateral, it is not isosceles.
Now, contra-positive is:
If a triangle is equilateral, it is isosceles.
Question 5 :
Which of the following is not a negation of the statement A natural number is greater than zero
(a) A natural number is not greater than zero
(b) It is false that a natural number is greater than zero
(c) It is false that a natural number is not greater than zero
(d) None of these
Correct Answer – (C)
Gievn statement is:
A natural number is greater than zero
Negation of the statement:
A natural number is not greater than zero
It is false that a natural number is greater than zero
So, option 3 is not true.
MCQ Class 11 Mathematics Mathematical Reasoning with Answers
Question 6 :
Which of the following statement is a conjunction
(a) Ram and Shyam are friends
(b) Both Ram and Shyam are friends
(c) Both Ram and Shyam are enemies
(d) None of these
Correct Answer – (D)
All the statements are conjunction. So, option 4 is the correct answer.
Question 7 :
Which of the following is not a statement
(a) The product of (-1) and 8 is 8
(b) All complex number are real number
(c) Today is windy day
(d) All of the above
Correct Answer – (D)
A sentence is a statement if it is true.
None of the above sentence is true.
So, option 4 is the correct answer.
Question 8 :
Which of the following is a statement
(a) I will go tomorrow
(b) She will come today
(c) 3 is a prime number
(d) Tomorrow is Friday
Correct Answer – (C)
The statement 3 is a prime number is true.
So, it is a statement.
Question 9 :
Which of the following is a statement
(a) x is a real number
(b) Switch of the fan
(c) 6 is a natural number
(d) Let me go
Correct Answer – (C)
The statement 6 is a natural number is true.
So, it is a statement.
Question 10 :
The connective in the statement 2 + 7 > 9 or 2 + 7 < 9 is
(a) and
(b) or
(c) >
(d) <
Correct Answer – (B)
- NCERT Solutions Class 11 Mathematics Mathematical Reasoning with Answers : Exercise 14.1
- NCERT Solutions Class 11 Mathematics Mathematical Reasoning with Answers : Exercise 14.2
- NCERT Solutions Class 11 Mathematics Mathematical Reasoning with Answers : Exercise 14.3
- NCERT Solutions Class 11 Mathematics Mathematical Reasoning with Answers : Exercise 14.4
- NCERT Solutions Class 11 Mathematics Mathematical Reasoning with Answers : Exercise 14.5
- NCERT Solutions Class 11 Mathematics Mathematical Reasoning with Answers : Exercise 14 Misc
- NCERT Solutions Class 11 Mathematics Textbook download
