The sum of the ages of father and a son presently is 70 years. After 10 years, the son's age is exactly half that of the father. What are their ages now?
45 years, 25 years
50 years, 20 years
47 years, 23 years
50 years, 25 years
B.
50 years, 20 years
Suppose the age of son = x years
therefore, Age of the father = 70 - x
After 10 years
2(x+ 10) = 70 -x + 10
2x+ 20 = 80 -x
2x + x = 80 - 20
3x = 60
x = 60/3 = 20 Years
Age of father = 70 - 20 = 50 years
