## ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 5 Sets Objective Type Questions

**Mental Maths**

Question 1.

Fill in the blanks:

(i) A collection of ……… objects is called a set.

(ii) If x is a member of the set A, we write it as ………

(iii) The order of listing the elements of a set can be ………

(iv) If one or more elements are repeated, the set remains ………

(v) If X is the set of all letters in the word ‘MATHEMATICS’, then the cardinal number of the set X is ………

Solution:

Question 2.

State whether the following statements are true (T) or false (F). Justify your answer.

(i) A collection of stamps is a set.

(ii) A collection of some fruits is a set.

(iii) A group of boys playing cricket is a set.

(iv) Collection of all students of your class taller than you is a set.

(v) Collection of five rivers of India is a set.

Solution:

**Multiple Choice Questions**

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

Question 3.

Which of the following collections is a set?

(a) Collection of all tasty fruits

(b) Collection of all good football players of your school

(c) Collection of all months of a year

(d) Collection of 5 most intelligent students of your class.

Solution:

Question 4.

The tabular form of the statement ‘All months of a year whose names begin with the letters J’ is

(a) {January, June, July}

(b) {months of a year whose names begin with the letter J}

(c) {x | x is a month of a year whose name begins with the letter J}

(d) none of these

Solution:

Question 5.

The method of representation used in the set A = {x | x is an even natural number less than 15} is called

(a) Description method

(b) Rule method

(c) Roster method

(d) None of these

Solution:

Question 6.

The cardinal number of the empty set is

(a) 2

(b) 1

(c) 0

(d) none of these

Solution:

Question 7.

If S = {x | x is a letter in the word AHMEDABAD}, then the cardinal number of S is

(a) 9

(b) 8

(c) 7

(d) 6

Solution:

Question 8.

If A = {x : x ϵ N and x is an odd prime number less than 17}, then the cardinal number of A is

(a) 8

(b) 6

(c) 5

(d) none of these

Solution:

Question 9.

{months of a year whose names begin with the letter F} is

(a) an infinite set

(b) empty set

(c) singleton set

(d) none of these

Solution: