Two numbers `x and y (x>y)` are such that their sum is equal to three times their difference. Then the value of `(3xy)/(x^2-y^2)` will be:

If x:y =2 :3 then the value of {:(3x+2y)/(9x+5y):} will be:

Two numbers x and y are such that x:y=2:3 and their highest common factor is 900 Then xy=

There are two numbers x and y such that the sum of two times x and three times y is less than or equal to 360. If the value os x is greater than or equal to 160, then what is the maximum value of y ?

If x:y=2:3, find the value of (3x+2y):(2x+5y)

If x+y=3 and xy=2,then the value of x^3-y^3 is equal to

If x+y=3 and xy=2 , then the value of x-y is

If x and y are two positive real numbers such that their sum is one,then the maximum value of x^(4)y+xy^(4) is-

The sum of two positive numbers is 20% of the sum of their squares and 25% of the difference of their squares. If the numbers are x and y the, (x+y)/(x^(2)) is equal to