Number of ways in which 7 blue bottles and green bottles can be arranged in a row it exactly w green bottles are together (assume all bottles are alike except for the colour)

Number of ways in which 7 green bottles and 8 blue bottles can be arranged in a row if exactly 1 pair of green bottles is side by side, is (Assume all bottles to be alike except for the colour).

Number of ways in which 7 green bottles and 8 blue bottles can be arranged in a row if exactly 1 pair of green bottles is side by side, is (Assume all bottles to be alike except for the colour).

Number of ways in which 7 green bottles and 8 blue bottles can be arranged in a row if exactly 1 pair of green bottles is side by side, is (Assume all bottles to be alike except for the colour).

Number of ways in which 7 green bottles and 8 blue bottles can be arranged in a row if exactly 1 pair of green bottles is side by side, is (Assume all bottles to be alike except for the colour).

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.

There are 3 blue balls, 4 red balls and 5 green balls. In how many ways can they be arranged in a row?

In the given , which number represents steel bottles which are caps ?

Which of the following cases can be represented in ration ( d) Litres of water in my water bottle and Temperature of water.