[tex]I:{x}{2}\ \textless \ \frac{20}{x} /*x
\\ x^{2} \ \textless \ 40
\\x=1,2,3,4,5,6[/tex]
[tex]II: \frac{20}{x} \ \textless \ \frac{x*17}{10} /*x \\ x^{2} \ \textless \frac{200}{17}\\x<28,5\\x=1,2,3,4,5 [/tex]
[tex]\\din I si II => x=1,2,3,4,5[/tex]
