Question

Sanjay will be 3 times as old as he was 4 years ago after 18 years. Find his present age.​

Answer 1

Answer:

15 years

Step-by-step explanation:

Let the present age of Sanjay be x.

Age before 4 years = x-4

Age after 18 years = x+18

According to Question,

3(x-4) = x+18

=> 3x - 12 = x + 18

=> 3x - x = 18 + 12

=> 2x = 30

=> x = 30/2

=> x = 15

Hence, the present age of Sanjay is 15 years.

Answer 2

Answer:

Let his age be x,

Sanjay's age 4 years ago = x - 4

His age 18 years from now = x + 18

According to the question,

3 (x - 4) = x + 18

3x - 12 = x + 18

3x - x = 18 + 12

2x = 30

x = 30/2 = 15

So, Sanjay is 15 years old.