Question

solve the 2 question.....if you are ginius...

Answer 1

Let present age of Nuri = x
And Sonu = y

5 years ago
Age of Nuri :- x - 5
Age of Sonu = y - 5

(x - 5) = 3(y - 5)
x - 5 = 3y - 15
x -3y = -15 + 5 = - 10
x - 3y = -10 ..............(1)

Case 2 :-
10 years after :-
Age of Nuri :- x + 10
Age of Sonu :- y + 10
( x + 10) = 2(y + 10)
x + 10 = 2y + 20
X - 2y = 10 .............(2)
Solve (1) and (2) by elimination
x - 3y = - 10
___________
x -y = 10

On solving we get x = 50
Put value of x on (1)
50 - 3y = - 10
y = 20

Present age of Nuri = 50 years
Present age of Sonu = 20 years


Hope it helps you