There are 5 volumes of Mathematics among 25 books. They are arranged on a shelf in random order. The probability that the volumes of Mathematics stand in increasing order from left to right (the volumes are not necessarily kept side by side) is

There are 5 volumes of Mathematics among 25 books. They are arranged o

1.	There are 5 volumes of Mathematics among 25 books. They are arranged on a shelf in random order. The probability that the volumes of Mathematics stand in increasing order from left to right (the volumes are not necessarily kept side by side) is
A.	\[\frac{1}{5\,!}\]
B.	\[\frac{50\,!}{55\,!}\]
C.	\[\frac{1}{{{50}^{5}}}\]
D.	None of these
Answer» B. \[\frac{50\,!}{55\,!}\]

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There are 5 volumes of Mathematics among 25 books. They are arranged on a shelf in random order. The probability that the volumes of Mathematics stand in increasing order from left to right (the volumes are not necessarily kept side by side) is

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