Question

After 12 years I shall be 3 times as old as I was 4 years ago. Then my present age is equal to
(A) 12 years
(B) 18 years
(C) 24 years
(D) 30 years

Answer 1

Answer:

present age = 12

4 year before =8

8×3=24

Answer 2

${\tt{\green{\underline{\underline{\huge{ANSWER:—}}}}}}$

Let my present age be x years.

My age before 4 years = (x-4)

my age after 12 years = (x+12)

According to the question,

⠀⠀(x+12) = 3(x-4)

⟹ x + 12 = 3x - 12

⟹ x - 3x = -12 - 12

⟹ -2x = -24

⟹ 2x = 24

⟹ x = 12 years.

So, My present age is 12 years.

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