JEE Novice - (24) (fixed)

Algebra Level 3

{1x+1y=131x+1z=151y+1z=17\Large \begin{cases} \dfrac{1}{x} + \dfrac{1}{y} = \dfrac{1}{3} \\ \dfrac{1}{x} + \dfrac{1}{z} = \dfrac{1}{5} \\ \dfrac{1}{y} + \dfrac{1}{z} = \dfrac{1}{7} \end{cases}

If x,y,zx,y,z satisfy the system above , find the value of the ratio zy\dfrac{z}{y}.


This question is a part of JEE Novices.
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