\[\boxed{\mathbf{1014}\mathbf{.}\mathbf{\ }}\]
\[\frac{11^{\backslash 3}}{20} - \frac{2^{\backslash 4}}{15} = \frac{33 - 8}{60} = \frac{25}{60} =\]
\[= \frac{5}{12}\ (ч) - на\ мытье\ посуды.\]
\[\frac{11^{\backslash 3}}{20} + \frac{5^{\backslash 5}}{12} = \frac{33 + 25}{60} =\]
\[= \frac{29}{30}\ (ч) - потрачено\ на\ \]
\[уборку\ и\ мытье\ посуды.\]
\[Ответ:\ \frac{29}{30}\ часа.\]