[" Number of ways in which "5" alike red balls and "6" alike "],[" green balls can be arranged so that exactly two pairs "],[" of green balls are together is: "]

The number of ways in which 4 different red balls and 8 similar green balls can be arranged in a row so that at most 3 red balls are together is equal to

The number of ways in which 4 different red balls and 8 similar green balls can be arranged in a row so that at most 3 red balls are together is equal to

The number of ways in which 5 red balls , 4 black balls of different sizes can be arranged in a row so that no two balls of the same colour come together is

Find the number of ways in which 5 red balls, 4 black balls of different sizes can be arranged in a row so that no two balls of the same colour come together.

Find the number of ways in which 5 red balls, 4 black balls of different sizes can be arranged in a row so that the balls of the same colour come together.

Find the number of ways by which 4 green, 3 red and 2 white balls can be arranged in a row such that no two balls of the same colour are together. All balls of the same colour are identical.

In how many ways can 4 identical black balls , 5 identical red balls and 6 identical green balls be arranged in a row so that at least one ball is seperated from balls of the same colour ?

You are given 8 balls of different colour (black,white ......). The number of ways in which these balls can be arranged in a row so that the two balls of particular colour (say red and white) may never come together is-