Find the triplicate ratio of ` (2y-x) : (2x-y)`, if ` x : y = 4 : 3`.

(a) If x : y = 3 : 4 , then find the value of the ratio (2x + y) : ( 9x - 2y) . (b) If x : y = 5 : 4 , then find the value of the ratio (x^(2) + xy) : (x^(2) - xy) .

Find sub-triplicate ratio of : (i) 64 : 27 (ii) x^(3) : 125y^(3)

Find the compound ratio of the ratios (x + y) : (x - y), (x^(2) + y^(2)) : (x + y)^(2) " and " (x^(2)-y^(2))^(2) : (x^(4) - y^(4)) .

Find the compounded ratio of: (x+y): (x-y), (x^(2) + y^(2)): (x+y)^(2) and (x^(2)-y^(2))^(2): (x^(4)-y^(4))

Find the values of (x-y) , if (i) 3x + 4y = 11 , 4x + 3y = 10 (ii) 3x + 2y = 8 , 2x + 3y = 7

Find the greatest value of x^(3)y^(4) if 2x+3y=7 and x>=0,y>=0 .

If x.y = 2/3, then what is the ratio of (3x+2y) and (3x-y) ?

Fill in the blanks : (a) The bus-triplicate ratio of the inverse ratio of 27 : 64 is ________. (b) The compound ratio of the inverse of the ratio (x + y) : (x - y) " and " (x^(2) - y^(2)) : (x+ y)^(2)

If the ratio between 8 and 11 is the same as the ratio of 2x - y to x + 2y , find the value of (7x)/(9y) .