capegemini - the sum of the 12 of karunanidhis age two years from now and 13 of his age three years ago is twenty years then how old is he now - skillgun

Karunanidhi's age two years in the future and three years in the past.
Assume Kaunanidhi's age now be K.
His age after two years from now is K + 2 and three years ago is K - 3.
1/2 of age two years from now is (1/2)(K + 2) = K/2 + 1
1/3 of age three years ago is (1/3)(K - 3) = K/3 - 1
The sum of these two numbers is twenty,
i.e.k/2 + 1 + K/3 - 1 = 20
K/2 + K/3 = 20
3K + 2K = 120
K = 120/5 = 24