A father is 9 times as old as his son. In three years, the father will be 6 times as old as his son.

How old is the son?

Guest Jun 28, 2021

#1**+2 **

f = 9s

in three years

f+3 = 6 (s+3) sub in the red equation

9s + 3 = 6s + 18

3s = 15

s = 5 y/o

ElectricPavlov Jun 28, 2021

#1**+2 **

Best Answer

f = 9s

in three years

f+3 = 6 (s+3) sub in the red equation

9s + 3 = 6s + 18

3s = 15

s = 5 y/o

ElectricPavlov Jun 28, 2021