\[1)\ Клок:\]
\[P = \frac{P_{4}}{2!} = \frac{4!}{2!} = \frac{4 \bullet 3 \bullet 2!}{2!} =\]
\[= 4 \bullet 3 = 12.\]
\[Ответ:\ \ 12.\]
\[2)\ Окно:\]
\[P = \frac{P_{4}}{2!} = \frac{4!}{2!} = \frac{4 \bullet 3 \bullet 2!}{2!} =\]
\[= 4 \bullet 3 = 12.\]
\[Ответ:\ \ 12.\]
\[3)\ Драма:\]
\[P = \frac{P_{5}}{2!} = \frac{5!}{2!} = \frac{5 \bullet 4 \bullet 3 \bullet 2!}{2!} =\]
\[= 5 \bullet 4 \bullet 3 = 60.\]
\[Ответ:\ \ 60.\]
\[4)\ Банан:\]
\[P = \frac{P_{5}}{2! \bullet 2!} = \frac{5!}{2 \bullet 2!} = \frac{5 \bullet 4 \bullet 3 \bullet 2!}{2 \bullet 2!} =\]
\[= 5 \bullet 2 \bullet 3 = 30.\]
\[Ответ:\ \ 30.\]
\[5)\ Шарабан:\]
\[P = \frac{P_{7}}{3!} = \frac{7!}{3!} = \frac{7 \bullet 6 \bullet 5 \bullet 4 \bullet 3!}{3!} =\]
\[= 7 \bullet 6 \bullet 5 \bullet 4 = 840.\]
\[Ответ:\ \ 840.\]
\[6)\ Кукушка:\]
\[P = \frac{P_{7}}{3! \bullet 2!} = \frac{7!}{2 \bullet 3!} =\]
\[= \frac{7 \bullet 6 \bullet 5 \bullet 4 \bullet 3!}{2 \bullet 3!} =\]
\[= 7 \bullet 6 \bullet 5 \bullet 2 = 420.\]
\[Ответ:\ \ 420.\]
\[7)\ Математика:\]
\[P = \frac{P_{10}}{2! \bullet 3! \bullet 2!} = \frac{10!}{2 \bullet 2 \bullet 3!} =\]
\[= \frac{10 \bullet 9 \bullet 8 \bullet 7 \bullet 6 \bullet 5 \bullet 4!}{4!} =\]
\[= 151\ 200.\]
\[Ответ:\ \ 151\ 200.\]
\[8)\ Тетраэдр:\]
\[P = \frac{P_{8}}{2! \bullet 2!} = \frac{8!}{2 \bullet 2!} =\]
\[= \frac{8 \bullet 7 \bullet 6 \bullet 5 \bullet 4 \bullet 3 \bullet 2!}{2 \bullet 2!} =\]
\[= 8 \bullet 7 \bullet 6 \bullet 5 \bullet 2 \bullet 3 = 10\ 080.\]
\[Ответ:\ \ 10\ 080.\]