Home
Class 10
MATHS
If a : b = 4 : 5 " and " x : y = 5 : 7 ...

If `a : b = 4 : 5 " and " x : y = 5 : 7` then find the value of `(5ax - 3by) : (by + 2ax)`.

Text Solution

Verified by Experts

The correct Answer is:
`-1 : 15`
Promotional Banner

Topper's Solved these Questions

  • RATIO AND PROPORTION

    CALCUTTA BOOK HOUSE|Exercise EXERCISE - 2.2 (Long Answer Type Questions)|19 Videos

  • RATIO AND PROPORTION

    CALCUTTA BOOK HOUSE|Exercise EXERCISE - 2.2 (Fill in the blanks)|1 Videos

  • QUADRATIC SURDS

    CALCUTTA BOOK HOUSE|Exercise Exercise -3.2|28 Videos

  • RECTANGULAR PARALLELOPIPED OR CUBOID

    CALCUTTA BOOK HOUSE|Exercise EXERCISE-(MCQs)|40 Videos

Similar Questions

Explore conceptually related problems

If a : b = 3 : 4 " and " x : y = 5 : 7 , then find the value of (3ax - by) : (4by - 7ax) .

If f(x) = ax + b and f(0) = 3, f(2) = 5, then find the value of a and b.

Answer any One question : If (3x - 2y) : (x + 3y) = 5 : 6, then find the value of (2x + 5y) : (3x + 4y).

(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) .

If x= 3p and y=(2p)/5+1 , then find the value of p for which x = 5y.

If x= (sqrt5+1)/(sqrt5-1) and x = 1/y then find the value of (3x^(2) -7xy + 3y^(2))

If (2x)/3=(4y)/5=(7z)/9 then find the value of (4x+12y-21z)/(3y) .

If the point (3, 4) lies on the equation 3y = ax + 7, find the value of a.