Răspuns :
[tex]\dfrac{x_1+x_2+x_3+x_4+x_5+x_6}{6} = 24 \Rightarrow x _1+x_2+x_3+x_4+x_5+x_6 = 144 \\ \\ \dfrac{x_7+x_8+x_9+x_{10}}{4} = 56 \Rightarrow x_7+x_8+x_9+x_{10} = 224 \\ \\ \dfrac{x_1+x_2+...+x_6+x_7+x_8+...+x_{10}}{10} = \dfrac{144+224}{10} = \dfrac{368}{10} = \boxed{36,8}[/tex]