Question

1. After 12 years, Kanwar shall be 3 times as old as he was 4 years ago.
Find his present age.​

Answer 1

Answer:

12

Step-by-step explanation:

x is present age

3(x-4)= x+12

3x - 12 = x + 12

3x - x = 12 + 12

2x = 24

x = 12

Answer 2

Answer:

given,

After 12 years, Kanwar shall be 3 times as old as he was 4 years ago.

to find:-

present age of Kanwar.

$\sf\underline{solution}$

let,

present age of Kanwar be 'x'.

After 12 years age of Kanwar's = x + 12.

4 years ago Kanwar's age = x - 4.

according to question : -

age of Kanwar after 12 years = 3 times the age of Kanwar 4 years ago.

. : x + 12 = 3×(x - 4)

x + 12 = 3x - 3(4)

x + 12 = 3x - 12

x - 3x = -12-12

-2x = -24

x = $\sf\dfrac{-24}{-2}$

x = 12.

.: present age of Kanwar = x = 12.