\[\boxed{\mathbf{1076\ (}\mathbf{н}\mathbf{)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[107,2\% = 1,072\]
\[250 \cdot 1,072 = 268\ (яиц) -\]
\[на\ душу\ населения\ \]
\[в\ 2013\ году.\]
\[Ответ:\ 268\ яиц.\]
\[\boxed{\mathbf{1076}\mathbf{.}\mathbf{\ }}\]
\[1)\ \frac{2^{\backslash 8}}{3}a + \frac{5^{\backslash 3}}{8}a + \frac{1^{\backslash 4}}{6}a =\]
\[= \frac{16 + 15 + 4}{24}a = \frac{35}{24}a = 1\frac{11}{24}a\]
\[2)\ \frac{4^{\backslash 3}}{5}b - \frac{2^{\backslash 5}}{3}b + \frac{4}{15}b =\]
\[= \frac{12 - 10 + 4}{15}b = \frac{6}{15}b = \frac{2}{5}b\]
\[3)\ \frac{7^{\backslash 4}}{12}y - \frac{3^{\backslash 3}}{16}y + \frac{5^{\backslash 2}}{24}y =\]
\[= \frac{28 - 9 + 10}{48}y = \frac{29}{48}y\]