Kamal was 4 times as old as his son 8 years ago. After 8 years, Kamal will be twice as old as his son. Find out the present age of Kamal.
40 years
38 years
42 years
36 years
Explanation:
Let the age of the son before 8 years = $x$
Then age of Kamal before 8 years ago = 4$x$
After 8 years, Kamal will be twice as old as his son
=> 4$x$ + 16 = 2$\left(x + 16\right)$
=> $x$ = 8
Present age of Kamal = 4$x$ + 8 = 4×8 + 8 = 40