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  1. Chapter 2 Class 8 Linear Equations in One Variable
  2. Serial order wise
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Ex 2.4, 9 A grandfather is ten times older than his granddaughter. He is also 54 years older than her. Find their present ages.Let Granddaughter's present age be x Then, Grandfather's age = 10x Given, Grandfather's age = Granddaughter's age + 54 10x = x + 54 10x − x = 54 9x = 54 x = 54/9 x = 6 ∴ Grand daughter's age = x = 6 years & Grand father's age = 10x = 10 × 6 = 60 years.

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.