If x:y=3:4 then (7x+3y): (7x-3y) is equal to:Options5 : 24 : 311 : 337 : 19

Sure, let's solve this step by step:

Given, x:y = 3:4

We need to find the ratio (7x+3y) : (7x-3y)

Substitute the given ratio into the equation:

= (73 + 34) : (73 - 34) = (21 + 12) : (21 - 12) = 33 : 9

So, the ratio (7x+3y) : (7x-3y) is 33:9.

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