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Question Number 124282 by bramlexs22 last updated on 02/Dec/20

Answered by liberty last updated on 02/Dec/20

Commented by malwan last updated on 02/Dec/20

$$\frac{\left(\begin{array}{c}5\\ 5\end{array}\right)}{\left(\begin{array}{c}25\\ 5\end{array}\right)}=\frac{1}{\frac{25\times 24\times 23\times 22\times 21}{5\times 4\times 3\times 2\times 1}}$$$$=\frac{1}{5\times 23\times 22\times 21}=\frac{1}{53130}$$

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