The father is 27 years older than his son. Four years later, the father's age is four times that of his son. How old is his son this year?

The father is 27 years older than his son. Four years later, the father's age is four times that of his son. How old is his son this year?

4-1 = 3; 27 △ 3 = 9 (years old); 9-4 = 5 (years old); a: my son is 5 years old

The father is 27 years older than his son. Four years later, the father's age is four times that of his son. How old is the father now?

Let the father's age be x and the son's age be y
Then X-Y = 27, x + 4 = 4 (y + 4)
The solution is: x = 32, y = 5
The question is how old is my father now, which should be four years later
So it should be 36

The father is 27 years older than his son. Four years later, the father's age is four times that of his son. How old is his son this year?

4-1 = 3; 27 △ 3 = 9 (years old); 9-4 = 5 (years old); a: my son is 5 years old