JEE Maths
Sets
Question 1:
If A and b are two given sets, then is equal to [Level: Easy]
(a) A
(b) B
(c)
(d) .
Question 2:
If n(A) = 5, n(B) = 10 and n(C) = 20 for three disjoint sets A, B and C, then what is the value of n(A B
C)? [Level: Easy]
(a) 0
(b) None of these
(c) 25
(d) 35
Question 3:
The Set S = is to be partitioned into three sets A, B, C of equal size. Thus
,
. What is the number of ways to partition S? [Level: Moderate]
(a)
(b)
(c)
(d)
Question 4:
If A = {0, ,{8}}, what will be the number of subsets of P(A)? [Level: Moderate]
(a) 4
(b) 8
(c) 256
(d) 16
Question 5:
If A ⊂ B and B ⊂ C then A ∪ C is equal to [Level: Easy]
(a) C
(b) B
(c) A
(d) None of these
Question 6:
If A and B be two sets containing 4 and 7 elements respectively. What can be the minimum and maximum number of elements in A∪B? [Level: Moderate]
(a) 3, 4
(b) 4, 7
(c) 7, 11
(d) None of these
Question 7:
Two finite sets have m and n elements respectively. The total number of subsets of first set is 120 more than the total number of subsets of the second set. The values of m and n respectively are: [Level: Moderate]
(a) 4, 3
(b) 7, 3
(c) 6, 3
(d) 3, 7
Question 8:
If A = ϕ then what will be the value of n(P(A))? [Level: Easy]
(a) ϕ
(b) 0
(c) Insufficient data
(d) 1.
Question 9:
In a town of 10,000 families, it was found that 40 % family buy newspaper A, 20 % buy newspaper B and 10 % families buy newspaper C, 5 % families buy A and B, 3 % families buy B and C and 4 % buy A and C. If 2 % families buy all 3 newspapers, then find the number of families which buy newspaper B only. [Level: Moderate]
(a) 1200
(b) 2000
(c) 1400
(d) 1800
Question 10:
If A and B are two sets, then (A – B) (B – A)
(A ∩ B) equals to: [Level: Easy]
(a) A∪B
(b) A∩B
(c) A’
(d)
Question 11:
Which option is representing the given Venn diagram? [Level: Moderate]
(a) (A∪B∪C)
(b) (A∪B)∩C’
(c) (A∩B∩C)
(d) (A∪B)∩(A∩B∩C)’.
Question 12.
Two finite sets have m and n elements respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The values of m and n respectively are: [Level: Moderate]
(a) 7, 6
(b) 5, 1
(c) 6, 3
(d) 8, 7.
Question 13.
If and
, then [Level: Difficult]
(a)
(b)
(c)
(d)
Question 14.
If , and
, then
is equal to: [Level: Difficult]
(a) 49
(b) 10
(c) 11
(d) 0
Question 15.
Let be 100 sets such that
and
, then
contains total number of elements as [Level: Difficult]
(a) 61
(b) 100
(c) 101
(d) 60
Question 16.
If X = {(x, y) : y = e-x; x ∈ W} and Y = {(x, y) : y = ex, x ∈ W}, then what will be the number of elements in P [(X ∩ Y)]? [Level: Difficult]
(a) 4
(b) 0
(c) 2
(d) None of these
Question 17.
In a class of 85 students, 45 students play carom, 30 students play basketball, and 15 students play both the games. Find the number of students who play neither of them. [Level: Moderate]
(a) 10
(b) 60
(c) 25
(d) 40
Question 18.
Let and
. Then which one of the following statements is true? [Level: Difficult]
(a)
(b)
(c)
(d)
Question 19.
A survey shows that 73% of the persons working in an office like tea, whereas 65% like coffee. If x denotes the percentage of them, who like both tea and coffee, then x cannot be: [Level: Moderate]
(a) 63
(b) 54
(c) 38
(d) 36
Question 20.
Let S = {1, 2, 3, ..., 100}. The number of non-empty subsets A of S such that the product of elements in A is even is: [Level: Moderate]
(a)
(b)
(c)
(d)
**********
In summary, problem-solving after learning a theoretical concept on CBSE Sets JEE Maths is an essential part of the learning process. It enhances your understanding, critical thinking abilities, and retention of knowledge. Moreover, it equips you with valuable skills that are applicable in academic, personal, and professional contexts.
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Practicing questions plays a pivotal role in achieving excellence in exams. Just as the adage goes, "Practice makes perfect," dedicating time to solve a diverse range of exam-related questions yields manifold benefits. Firstly, practicing questions allows students to familiarize themselves with the exam format and types of problems they might encounter. This familiarity instills confidence, reducing anxiety and improving performance on the actual exam day. Secondly, continuous practice sharpens problem-solving skills and enhances critical thinking, enabling students to approach complex problems with clarity and efficiency. Thirdly, it aids in identifying weak areas, allowing students to focus their efforts on improving specific topics. Moreover, practice aids in memory retention, as active engagement with the material reinforces learning. Regular practice also hones time management skills, ensuring that students can allocate appropriate time to each question during the exam. Overall, practicing questions not only boosts exam performance but also instills a deeper understanding of the subject matter, fostering a holistic and effective learning experience.
All About Daily Practice Problems on JEE Maths Sets NCERT Chapter 1
Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on JEE Maths Sets NCERT Chapter 1 useful.
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