if `x:y=2:5` then `(10x+3y):(5x+2y)` is _____.

If (10x+3y):(5x+2y)= 9:5 then find (2x+y):(x+2y).

If 2x + 3y = 10 and 3x + 2y = 5 , then value of x +y is ____

If (5x+2y) : (10x+3y) = 5:9 , then (2x^2+3y^2 ):(4x^2+9y^2) =? यदि (5x+2y) : (10x+3y) = 5:9 , है, तो (2x^2+3y^2 ): (4x^2+9y^2) =?

If (10 x + 3y) : (5x + 2y) = 9 : 5 , then show that (2x + y) : (x + 2y) = 11 : 13 .

if (3x-2y):(5x-7y)=5:3 then, find x:y.

3x - y= 5, 6x - 2y = 10 .

If (3x -4y) : (2x -3y) = (5x -6y) : (4x -5y) , find : x : y .

Simplify : (i) (5x - 9y) - (-7x + y) (ii) (x^(2) -x) -(1)/(2)(x - 3 + 3x^(2)) (iii) [7 - 2x + 5y - (x -y)]-(5x + 3y -7) (iv) ((1)/(3)y^(2) - (4)/(7)y + 5) - ((2)/(7)y - (2)/(3)y^(2) + 2) - ((1)/(7)y - 3 + 2y^(2))