In how many ways can a committee be formed of $5$ members from $6$ men and $4$ women if the committee has at least one woman
$186$
$246$
$252$
None of these
If $^n{P_3}{ + ^n}{C_{n - 2}} = 14n$, then $n = $
The students $S _{1}, S _{2}, \ldots \ldots, S _{10}$ are to be divided into $3$ groups $A , B$ and $C$ such that each group has at least one student and the group $C$ has at most $3$ students. Then the total number of possibilities of forming such groups is ........ .
To fill $12$ vacancies there are $25$ candidates of which five are from scheduled caste. If $3$ of the vacancies are reserved for scheduled caste candidates while the rest are open to all, then the number of ways in which the selection can be made
If $2 \times {}^n{C_5} = 9\,\, \times \,\,{}^{n - 2}{C_5}$, then the value of $n$ will be
A set contains $2n + 1$ elements. The number of subsets of this set containing more than $n$ elements is equal to