Sets Class- 7th RS Aggarwal Exe-6 E Goyal Brothers ICSE Math Solution . We provide step by step Solutions of lesson-6 Sets for ICSE Class-7 Foundation RS Aggarwal Mathematics of Goyal Brothers Prakashan . Our Solutions contain all type Questions of Exe-6 E to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-7 Mathematics. we would in this article about MCQs, Fill in the blanks, and True/False.
Sets Class- 7th RS Aggarwal Exe-6 E Goyal Brothers ICSE Maths Solution
| Board | ICSE |
| Publications | Goyal brothers Prakashan |
| Subject | Maths |
| Class | 7th |
| Chapter-6 | Sets |
| Writer | RS Aggrawal |
| Book Name | Foundation |
| Topics | Solution of Exe-6 E |
| Academic Session | 2023 – 2024 |
MULTIPLE CHOICE QUESTIONS
Exercise – 6 E
Sets Class- 7th RS Aggarwal Goyal Brothers ICSE Maths Solution
Choose the correct option in each of the following :
1. Which of the following is a finite set ?
(a) Set of all natural numbers greater than 500.
(b) Set of all integers less than 5.
(c) Set of all even prime numbers.
(d) Set of all multiples of 3.
Answer: option (c) Set of all even prime numbers is correct.
2. Which of the following is a pair of disjoint sets ?
(a) A = {even natural numbers} and B = {prime numbers}
(b) C = {multiples of 2} and D = {multiples of 3}
(c) E = {factors of 24} and F = {factors of 9}
(d) G = {letters in the word ‘RHYTHM’} and H = {Vowels in English Alphabet}
Answer: option (d) G = {letters in the word ‘RHYTHM’} and H = {Vowels in English Alphabet} is correct.
3. The cardinal number of the set A, defined as A = Set of all prime numbers less than 100, is
(a) -20
(b) 22
(c) 24
(d) 25
Answer: option (d) 25 is correct.
4. The number of proper subsets of the set {α, β, ∅, θ, η} is
(a) 24
(b) 25
(c) 31
(d) 32
Answer: option (c) 31 is correct.
5. The sets {a, b, c} and {x, y, z} are
(a) overlapping sets
(b) equal sets
(c) singleton sets
(d) equivalent sets
Answer: option (d) equivalent sets is correct.
6. A = {x : x is a prime number} and B = {x : x is an even natural number}. Then, A ∩ B is
(a) an empty set
(b) a singleton set
(c) an infinite set
(d) equal to A
Answer: option (b) a singleton set is correct.
7. If A = {x : x ∈ N, 5 ≤ x < 10} and B = {1, 2, 3, 4, 5}, then n(A – B) is equal to
(a) 1
(b) 2
(c) 4
(d) 5
Answer: option (a) 1 is correct.
8. If X = {x : x is a multiple of 5} and Y = {x : x is a multiple of 7}, then X ∩ Y is
(a) ∅
(b) {x : x is a multiple of 2}
(c) {5, 7}
(d) {x : x is a multiple of 35}
Answer: option (d) {x : x is a multiple of 35} is correct.
9. {∅} is a / an
(a) empty set
(b) infinite set
(c) singleton set
(d) universal set
Answer: option (c) singleton set is correct.
10. If A is any set and U is the universal set, then the complement of A is
(a) ∅
(b) A
(c) U – A
(d) U
Answer: option (c) U – A is correct.
11. n(A – B) is equal to
(a) n(A) – n(B)
(b) n(A) – n(A ∪ B)
(c) n(A ∪ B) – n(A ∩ B)
(d) n(A) – n(A ∩ B)
Answer: option (d) n(A) – n(A ∩ B) is correct.
MENTAL MATHS
Sets Class- 7th RS Aggarwal Goyal Brothers ICSE Maths Solution
1. Fill in the blanks :
(i) In a set-builder form, we list the properties satisfied by each element of the set.
(ii) A void set is usually denoted by ∅.
(iii) If A ⊆ X, then X is called a superset of A.
(iv) Two finite sets having the same number of elements are said to be equivalent.
(v) n(A ∪ B) + n(A ∩ B) = n(A) + n(B).
2. Write true (T) or false (F) :
| Statement | True/False |
| (i) The number of proper subsets of a set containing n elements is 2n. | F |
| (ii) Any set A and its complement are equivalent sets. | F |
| (iii) The complement of a set is a subset of U. | T |
| (iv) If n(A ∩ B) = ∅, then n(B – A) = n(B) | T |
| (v) If two sets A and B are disjoint, then n(A ∪ B) = n(A) + n(B) | T |
— : end of Sets Class- 7th RS Aggarwal Exe-6 E Goyal Brothers ICSE Maths Solution:–
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