Question

After 12 years I shall be 3 times as old as I 3 was 4 years ago. My present age is : (A) 21 years ) B) 12 years (C) 8 8 years (D) 20 years​

Answer 1

Answer:

B) 12 years

Step-by-step explanation:

Let present age be x,

Age 4 years ago = x−4

Age 12 years later = x+12

According to question,

x+12=3(x−4)

⇒ x+12=3(x−4)

⇒ x+12=3x−12

⇒ 2x=24

⇒ x=12 years

Hence, His present age is 12 years.