Maths : Set Language : Set - Book Back, Exercise, Example Numerical Question with Answers, Solution : Exercise 1.1

**Exercise 1.1**

**1. Which of the following are sets?**

**(i) The collection of prime numbers upto
100.**

**(ii) The collection of rich people in
India.**

**(iii) The collection of all rivers in
India.**

**(iv) The collection of good Hockey players.**

**2. List the set of letters of the following
words in Roster form.**

**(i) INDIA (ii) PARALLELOGRAM (iii) MISSISSIPPI
(iv) CZECHOSLOVAKIA**

**3. Consider the following sets A
= {0, 3, 5, 8}, B = {2, 4, 6, 10} and C = {12, 14,18, 20}.**

**(a) State whether True or False:**

**(i) 18 ****âˆˆ**** C**

**(b) Fill in the blanks:**

**(i) 3 ****âˆˆ**** ____****
****(ii)
14 ****âˆˆ ****_____****
****(iii)
18 ____ B**

**4. Represent the following sets in Roster
form.**

**(i) A **

**(ii) B
**

**(iii) C
**

**(iv) D
**

**5. Represent the following sets in set
builder form.**

**(i) B = The set of all Cricket
players in India who scored double centuries in One Day Internationals.**

**(ii) C
**

**(iii) D
**

**(iv) E = The set of odd Whole
numbers less than 9.**

**6. Represent the following sets in descriptive
form.**

**(i) P ={ January, June, July}**

**(ii) Q = {7,11,13,17,19,23,29}**

**(iii) R = {x : x **

**(iv) S = {x : x is
a consonant in English alphabets}**

Tags : Numerical Problems with Answers, Solution | Set Language | Maths , 9th Maths : UNIT 1 : Set Language

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9th Maths : UNIT 1 : Set Language : Exercise 1.1 : Set | Numerical Problems with Answers, Solution | Set Language | Maths

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