Question

A man is three times as old as his son. After 12 years he will be twice as old as his son at that time find their present ages

Answer 1

Present year,
Age of son = x
Age of man = 3x
After 12 years,
Age of son = x + 12
Age of man = 3x + 12
According to the question,
3x + 12 = 2(x + 12 )
3x + 12 = 2x + 24
3x - 2x = 24 - 12
x = 12
So,
The present age of son = 12 years.
The present age of man = 36 years.
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Answer 2

Answer:

(12,36)

Step-by-step explanation:

let son = x

father  = 3x

then after 12 years,

Age of son = x + 12

Age of man = 3x + 12

which impiles;-

3x + 12 = 2(x + 12 )

3x + 12 = 2x + 24

3x - 2x = 24 - 12

x = 12

So,

The present son's age= 12 years.

The present father's age = 36 years.