Question

Five years ago nuri was thrice as old as sonu ten years later nuri will be twice as old as sonu find the present ages of nuri and sonu

Answer 1

therefore age of nuri is 50 and age of sonu is 20

Answer 2

Let the present age of Nuri be x years and present age of sonu be y years.

According to given conditions,

5 years ago,

x - 5 = 3(y - 5)

x - 3y = -10 ...... (Eqn 1)

10 year later,

x + 10 = 2(y + 10)

x - 2y = 10 ........ (Eqn 2)

On subtracting eqn 1 from 2,

(x - 2y) - (x - 3y) = 10 + 10

-2y + 3y = 20

y = 20

On substituting y = 20 in eqn 2,

x = 2 × 20 + 10

x = 50

Hence present age of Nuri is 50 years and present age of Sonu is 20 years