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 $^{{n^2} - n}{C_2}{ = ^{{n^2} - n}}{C_{10}}$, then $n = $
$n$ balls each of weight $w$ when weighted in pairs the sum of the weights of all the possible pairs is $120$ when they are weighed in triplets the sum of the weights comes out to be $480$ for all possible triplets, then $n$ is
If $n = ^mC_2,$ then the value of $^n{C_2}$ is given by
The number of ways in which we can select three numbers from $1$ to $30$ so as to exclude every selection of all even numbers is
How many numbers between $5000$ and $10,000$ can be formed using the digits $1, 2, 3, 4, 5, 6, 7, 8, 9$ each digit appearing not more than once in each number