Question

Media aritmetica a trei numere rationale pozitive este 17/36 . Suma a doua dintre ele este 7/12. Calculati celalalt numar . PLEASE!!!

Answer 1

$\frac{x+y+z}{3}$=$\frac{17}{36}$
x+y+z=3x$\frac{17}{36}$
x+y+z=$\frac{17}{12}$
$\frac{7}{12}$+z=$\frac{17}{12}$
z=$\frac{17}{12}$-$\frac{7}{12}$
z=$\frac{10}{12}$
z=$\frac{5}{6}$