If \left(\sqrt{\frac{7}{5}}\right)^{3 x-y}=\frac{875}{2401} and \left(\frac{4 a}{b}\right)^{6 x-y}=\left(\frac{2 a}{b}\right)^{y-6 x}, for all non-zero real values of a and b, then the value of x+y is

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CAT 2022 Slot 3 QA · Question 11

If $(\frac{7}{5})^{3 x - y} = \frac{875}{2401}$ and $(\frac{4 a}{b})^{6 x - y} = (\frac{2 a}{b})^{y - 6 x}$ , for all non-zero real values of $a$ and $b$ , then the value of $x + y$ is

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