The number of different necklaces formed by using `2n` identical diamonds and 3 different jewels when exactly two jewels are always together is

The number of ways in which a necklace can be formed by using 5 identical red beads and 6 identicalwhite beads is

Number of necklaces can be formed with 4 identical beads and two distinct jewels is 'k', then k divides

Number of necklaces can be formed with 4 identical beads and two distinct jewels is 'k', then k divides

Number of necklaces can be formed with 4 identical beads and two distinct jewels is 'k', then k divides

The number of selection of n objects from 2n objects of which n are identical and the rest are different is

How many different words can be formed by using all the letters of the word MATHEMATICS ? In how many of them, vowels are always together ?

The number of different numbers that can be formed by using all the digits 1,2,3,4,3,2,1 so that odd digits always occupy the odd places IS 1)62)72 3) 60 ) 18

The number of different numbers that be can be formed by using all the digits 1,2,3,4,3,2,1 so that odd digits always occupy the odd places is