After 12 Years, I Shall Be 3 Times as Old as 1 Was 4 Years Ago. Find My Present Age. - Mathematics

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Sum

After 12 years, I shall be 3 times as old as 1 was 4 years ago. Find my present age.

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Solution

Let present age = x years

According to question,

(x + 12) = 3(x – 4)

x + 12 = 3x – 12

2x = 24

⇒ x = 12 years

Present age = 12 years

Concept: Solving Linear Inequations
  Is there an error in this question or solution?
Chapter 14: Linear Equations in one Variable - Exercise 14 (C) [Page 170]

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Selina Concise Mathematics Class 8 ICSE
Chapter 14 Linear Equations in one Variable
Exercise 14 (C) | Q 2 | Page 170
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