CBSE Class 11 Mathematics Chapter 1 Set Multiple Choice Questions with Answers. MCQ Class 11 Mathematics Set with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Mathematics Set MCQs with Answers to know their preparation level.
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MCQ Class 11 Mathematics Sets with Answers - Set - 2
Question 1:
In last quadrant?
(a) X < 0, Y > 0
(b) X < 0, Y < 0
(c) X > 0, Y < 0
(d) X > 0, Y > 0
Correct Answer – (D)
Question 2 :
Which of the following two sets are equal?
(a) A = {1, 2} and B = {1}
(b) A = {1, 2} and B = {1, 2, 3}
(c) A = {1, 2, 3} and B = {2, 1, 3}
(d) A = {1, 2, 4} and B = {1, 2, 3}
Correct Answer – (C)
Hint:
Two sets are equal if and only if they have the same elements.
So, A = {1, 2, 3} and B = {2, 1, 3} are equal sets.
Question 3 :
Empty set is a?
(a) Finite Set
(b) Invalid Set
(c) None of the above
(d) Infinite Set
Correct Answer – (A)
In mathematics, and more specifically set theory, the empty set is the unique set having no elements and its size or cardinality (count of elements in a set) is zero.
So, an empty set is a finite set.
Question 4 :
In 2nd quadrant?
(a) X < 0, Y < 0
(b) X < 0, Y > 0
(c) X > 0, Y > 0
(d) X > 0, Y < 0
Correct Answer – (B)
Question 5 :
The range of the function f(x) = 3x – 2‚ is
(a) (- ∞, ∞)
(b) R – {3}
(c) (- ∞, 0)
(d) (0, – ∞)
Correct Answer – (A)
Let the given function is
y = 3x – 2
⇒ y + 2 = 3x
⇒ x = (y + 2)/3
Now x is saisfied by all values.
So, Range{f(x)} = R = (-∞, ∞)
MCQ Class 11 Mathematics Sets with Answers
Question 6 :
In a class of 50 students, 10 did not opt for math, 15 did not opt for science and 2 did not opt for either. How many students of the class opted for both math and science.
(a) 24
(b) 25
(c) 26
(d) 27
Correct Answer – (D)
Total students = 50
Students who did not opt for math = 10
Students who did not opt for Science = 15
Students who did not opt for either maths or science = 2
Total of 40 students in math and 13 did not opt for science but did for math = 40 – 13 = 27
So, students of the class opted for both math and science is 27
Question 7 :
If A = [5, 6, 7] and B = [7, 8, 9] then A U B is equal to
(a) [5, 6, 7, 8, 9]
(b) [5, 6, 7]
(c) [7, 8, 9]
(d) None of these
Correct Answer – (A)
Given A = [5, 6, 7] and B = [7, 8, 9]
then A U B = [5, 6, 7, 8, 9]
Question 8 :
How many rational and irrational numbers are possible between 0 and 1?
(a) 0
(b) Finite
(c) Infinite
(d) 1
Correct Answer – (C)
There are infinite many rational and irrational numbers are possible between 0 and 1
This is because between any two numbers, there are infinite numbers.
Question 9 :
If A, B, C be three sets such that A ∪ B = A ∪ C and A ∩ B = A ∩ C, then,
(a) B = C
(b) A = C
(c) A = B = C
(d) A = B
Correct Answer – (A)
Given A, B, C be three sets such that A ∪ B = A ∪ C and A ∩ B = A ∩ C then B = C
Question 10 :
Two finite sets have N and M elements. The number of elements in the power set of first set is 48 more than the total number of elements in power set of the second test. Then the value of M and N are
(a) 7, 6
(b) 6, 4
(c) 7, 4
(d) 6, 3
Correct Answer – (B)
Let A and B be two sets having m and n numbers of elements respectively
Number of subsets of A = 2m
Number of subsets of B = 2n
Now, according to question
2m – 2n = 48
⇒ 2n(2m – n – 1) = 24(22 – 1)
So, n = 4
and m – n = 2
⇒ m – 4 = 2
⇒ m = 2 + 4
⇒ m = 6
- NCERT Solutions Class 11 Mathematics Sets : Exercise 1.1
- NCERT Solutions Class 11 Mathematics Sets : Exercise 1.2
- NCERT Solutions Class 11 Mathematics Sets : Exercise 1.3
- NCERT Solutions Class 11 Mathematics Sets : Exercise 1.4
- NCERT Solutions Class 11 Mathematics Sets : Exercise 1.5
- NCERT Solutions Class 11 Mathematics Sets : Exercise 1.6
- NCERT Solutions Class 11 Mathematics Sets : Exercise Misc
- NCERT Solutions Class 11 Mathematics Textbook download
