Practice Problems on Roster Form

Problem 1: Write the following in Roster Form.

Set of even numbers between 1 and 10.
Set of vowels in the English alphabet.
Set of prime numbers less than 20.
Set of days in a week.
Set of colours in a rainbow.
Set of planets in our solar system.

Problem 2: Write the following in Roster Form.

Set of three-digit numbers that are divisible by both 3 and 4.
Set of all two-digit prime numbers.
Set of elements in the periodic table that are noble gases.
Set of perfect numbers less than 100.
Set of all possible outcomes when rolling a fair six-sided die twice.
Set of positive integers that are divisible by 6, 8, and 10.

Roster Form

Roster Form is one of the two representations that any set can have, with the other representation being Set-Builder Form. In Roster form, all the elements of the set are listed in a row inside curly brackets. If the set comprises more than one element, a comma is used in roster notation to indicate the separation of every two elements. Since each element is counted separately, the roster form is also known as Enumeration Notation.

This article explores the concept of Roster form and helps you learn about this method of representing sets in Set Theory. In addition to details about Roster Form, we will also cover notation, provide examples, and discuss various applications of Roster Form.

Table of Content

What is Roster Form in Sets?
Roster Notation
Limitations of Roster Notation
Roster and Set Builder Form
Examples on Roster Form

Practice Problems on Roster Form

Roster Form

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