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1. Chapter 2 Class 8 Linear Equations in One Variable
2. Concept wise
3. Forming Linear Equations - Consecutive Numbers

Transcript

Ex 2.2, 6 Three consecutive integers add up to 51. What are these integers?Let first Integer = x Second Integer = x + 1 Third Integer = (x + 1) + 1 = x + 2 Now, Sum of Integers = 51 x + (x + 1) + (x + 2) = 51 x + x + x + 1 + 2 = 51 3x + 3 = 51 3x = 51 − 3 Rough Integers are −2, −1, 0, 1, 2, … Consecutive integers are 1, 2, 3 Difference between Consecutive Integers = 1 If number starting from 1, then First number = 1 Second number = 1 + 1 = 2 Third number = 2 + 1 = 3 3x = 48 x = 48/3 x = 16 Therefore, First Integer = x = 16 Second Integer = x + 1 = 16 + 1 = 17 Third Integers = x + 2 = 16 + 2 = 18 Thus, consecutive integers are 16, 17, 18

Forming Linear Equations - Consecutive Numbers

About the Author Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.