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Mathematical Puzzles Hard 3 min

A father is three times as old as his son. In 12 years, the father will be twice as old as his son. How old are they now?

Hint
Let the son be x.

Answer

Father: 36 years; son: 12 years.

Explanation

If the son is x, the father is 3x. In 12 years, 3x+12 = 2(x+12), giving x=12.

Step-by-Step Solution

3x+12 = 2x+24.
x = 12.
Father = 36.
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