Ten years ago, the age of Usman was one-third the age of Majeed at that time. The present age of Majeed is 12 years more than the present age of Usman. Find the present age of Usman ?

Let the present ages of Aftab and Kashif be ‘a’ and ‘b’ respectively.
a – 10 = 1/3 (b – 10) — (1)
b = a + 12
Substituting b = a + 12 in first equation,
a – 10 = 1/3 (a + 2) => 3a – 30 = a + 2
=> 2a = 32 => a = 16.