The value of $^{15}{C_3}{ + ^{15}}{C_{13}}$ is
$^{16}{C_3}$
$^{30}{C_{16}}$
$^{15}{C_{10}}$
$^{15}{C_{15}}$
A set contains $2n + 1$ elements. The number of subsets of this set containing more than $n$ elements is equal to
In how many ways can a girl and a boy be selected from a group of $15$ boys and $8 $ girls
A father with $8$ children takes them $3$ at a time to the Zoological gardens, as often as he can without taking the same $3$ children together more than once. The number of times he will go to the garden is
The number of words from the letters of the word $'RAJASTHAN' $ by taking all the letters at a time in which vowels are alternate, are
What is the number of ways of choosing $4$ cards from a pack of $52$ playing cards? In how many of these
are face cards,