The number of ways in which n things of which r are alike, can be arranged in a circular order, is

Find the number of ways in which n things of which r are alike, can be arranged in a circular order.

Finding the number of ways in which ten things, of which 4 are alike, can be arranged in a circular order.

Number of ways in which n things of which r alike delta the rest different can be arranged in a circle distinguishing between clockwise and anticlockwise arrangement,is

Find the number of ways in which 5 different books can be arranged on a shelf.

The number of ways in which 4n things can be divided into 4 equal parts is

Find the number of ways in which n different beads can be arranged to form a necklace.

The number of ways in which m+n(nlem+1) different things can be arranged in a row such that no two of the n things may be together, is

The number of ways in which m+n(nlem+1) different things can be arranged in a row such that no two of the n things may be together, is

The number of ways in which n books can be arranged so that two particular books are not together is