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Solution
Given : $$x:y=3:4$$
Let $$x=3$$ and $$y=4$$
To find : $$\frac{5x-2y}{7x+2y}$$
= $$\frac{5(3)-2(4)}{7(3)+2(4)}$$
= $$\frac{15-8}{21+8}=\frac{7}{29}$$
=> Ans - (C)
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