A grandfather is ten times older than his granddaughter. He is also 54 years older than her. Find their present ages.

Let present age of granddaughter be x years.
Therefore, Grandfather’s age = 10x years
According to question,
10x=x+54
⇒ 10x-x+54
⇒ 9x=54
⇒ x=54/9=6years
Hence, granddaughter’s age = 6 years and grandfather’s age = 10 x 6 = 60 years.

Class 8 Maths Chapter 2 Exercise 2.4 Solution in Video

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