Write the Following Sets in Roster (Tabular) Form : A4 = {X : X is a Two Digit Number and Sum of Digits of X is 7} - Mathematics

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Sum

Write the following sets in roster (Tabular) form :

A4 = {x : x is a two digit number and sum of digits of x is 7}

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Solution

A4 = {x : x is a two digit number and sum of digits of x is 7}

∵ x is a two digit number and sum of digits of x is 7

∴ x = 16, 25, 34, 43, 52, 61, 70

∴ Given set in roster (Tabular) form is 

A4 = {16, 25, 34, 43, 52, 61, 70}

Concept: Representation of a Set
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Chapter 6: Sets - Exercise 6 (A) [Page 65]

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Selina Concise Mathematics Class 8 ICSE
Chapter 6 Sets
Exercise 6 (A) | Q 1.4 | Page 65
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