\[\boxed{\mathbf{216\ (216)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\frac{24}{27} = \frac{8}{9} = \frac{40}{45};\ \ \ \ \ \ \ \ \ \ \]
\[\frac{1}{10} = \frac{6}{60}.\]
\[\boxed{\mathbf{216}\mathbf{.}}\]
\[MP = 32\ см;\]
\[MK = 24\ см;\]
\[NP = 18\ см;\]
\[KP = MP - MK = 32 - 24 =\]
\[= 8\ см.\]
\[NK = NP - KP = 18 - 8 =\]
\[= 10\ см.\]
\[Ответ:10\ см.\]