# ML Aggarwal Sets MCQs Class 7 ICSE Maths Solutions

ML Aggarwal Sets MCQs Class 7 ICSE Maths Solutions. We Provide Step by Step Answer of MCQs Questions for Sets as council prescribe guideline for upcoming board exam. Visit official Website CISCE for detail information about ICSE Board Class-7.

## ML Aggarwal Sets MCQs Class 7 Maths Solutions

Board | ICSE |

Publications | Avichal Publishig Company (APC) |

Subject | Maths |

Class | 7th |

Chapter-5 | Sets |

Writer | ML Aggarwal |

Book Name | Understanding |

Topics | Solution of MCQs |

Edition | 2023-2024 |

**Sets MCQs**

ML Aggarwal Class 7 ICSE Maths Solutions

Page-113

**Mental Maths**

**Question 1. Fill in the blanks:**

(i) If x is not a member of the set A, then symbolically we write it as ……..

(ii) Each element of a set is listed once and only ……….. repetitions are removed.

(iii) A set that contains a limited number of different elements is called a ……… set.

(iv) Two finite sets are called equivalent if and only if they have ………. a number of elements.

**Answer:**

(i) If x is not a member of the set, A then symbolically we write it as** x ∉ A**

(ii) Each element of a set is listed once and only **once** repetitions are removed.

(iii) A set that contains a limited number of different elements is called a **finite** set.

(iv) Two finite sets are called equivalent if and only if they have **equal** number of elements

**Question -2. State whether the following statements are true (T) or false (F):**

(i) A collection of books is a set.

(ii) If X = {letters of the word PRINCIPAL}, then the cardinal number of set X is 9.

(iii) If P = {letters of the word AHMEDABAD}, then n(P) = 6.

(iv) If A is any set, then A ⊂ A.

(v) An empty set is a subset of every set.

(vi) If set A = {0}, then n{A} = 0.

(vii) If A and B are two sets such that A ⇔ B, then A = B.

**Answer:**

(i) A collection of books is a set. **False**

**Correct:**

A collection of different books is a set.

(ii) If X = {letters of the word PRINCIPAL}, then the cardinal number of set X is 9. **False**

**Correct:**

N(x) = P,R,I,N,C,A,L = 7 not 9

(iii) If P = { letters of the word AHMEDABAD },then n(P) = 6, **True**

{A, H, M , E, D, B}

(iv) If A is any set, then A ⊂ A. **True**

(v) An empty set is a subset of every set. **True**

(vi) If set A = {0}, then n{A} = 0. **False**

Correct: {n(A)=1}

(vii) If A and B are two sets such that A ⟺ B , then A = B. **False**

Correct: A = B is A ⟺ B but is A ⟺ B is not always A = B

**Sets MCQs**

ML Aggarwal Class 7 ICSE Maths Solutions

Page-114

Choose the correct answer from the given four options (3 to 9)

**Question- 3. A set with a limited number of distinct elements is called**

(a) a finite set

(b) an infinite set

(c) both finite as well as an infinite set

(d) none of these

**Answer:**

Set with a limited number of distinct elements is called a finite set. (a)

**Question- 4. The symbol ↔ stands for**

(a) belongs to

(b) is a subset of

(c) is equivalent to

(d) none of these

**Answer:**

The symbol ↔ stands for (c) is equivalent to

**Question -5. The empty set is denoted as**

(a) {Φ}

(b) { }

(c) {0}

(d) 0

**Answer:**

The empty set is denoted as (b) { }

**Question -6. The cardinal number n(A) = for A = {x : x is an odd prime number less than 20} is**

(a) 8

(b) 7

(c) 9

(d) 10

**Answer:**

The cardinal number n(A) = {x:x is an odd prime number less than

20} = { 3, 5, 7, 11, 13, 17, 19 }

n(A) = 7 (b)

**Question -7. If A = {x | x is a positive multiple of 3 less than 20} and B = {x | x is a prime number less than 20}, then n(A) + n(B) is**

(a) 6

(b) 8

(c) 13

(d) 14

**Answer:**

A = { x\x is a positive multiple of 3 less than 20 }

= { 3,6,12,15,18}

= n(A) = 6

B = {x\x is a prime number less than 20 }

= {2,3,5,11,13,17,19 }

= n(B) = 8

N(A) + n(B) = 6+8 = 14 (d)

— : End of ML Aggarwal Sets MCQs Class 7 ICSE Maths Solutions :–

Return to **– **ML Aggarwal Maths Solutions for ICSE Class -7

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