Question 355052
let Zachary's age be x
father's age = x+25
...
in ten years their ages will be
Zachary x+10
father x+25+10 =x+35
...
x+10 = 1/2* (x+35)
2(x+10)=x+35
2x+20=x+35
2x-x=35-20
x= 15 son's age
fathers age = 40 years
...
m.ananth@hotmail.ca