Question 127

If x : y = 5 : 6, then (3x - 2y ) (y - x ) is

Solution
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it is given that x : y = 5 : 6

we need to find value of (3x - 2y ) : (y - x )

Now divide ( 3x - 2y ) by y and divide (y - x ) by y also

we get , $$\frac{3x/y -2}{1 - x/y}$$

use x/y = 5/6

(3x - 2y ) : (y - x ) = 3 : 1

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