The letters of the word "FLOWER" are taken 4 at a time and arranged in all possible ways. The number of arrangements which begin with `F` and end with `R` is

The letters of the word “FLOWER” are taken four at a time and arranged in all possible ways. The number of arrangements containing 'F' is

The letters of the word “ARTICLE” are taken four at a time and arranged in all possible ways. The number of arrangements containing 'A' is

The letters of the word "ARTICLE” are taken four at a time and arranged in all possible ways. The number of arrangements containing 'R' and not containing 'E' is

The letters of the word ARTICLE are taken four at a time and arranged in all possible ways.The number of arrangements containing backslash'R backslash' and not containing 'E' is :

The letters of the word “RANDOM' are arranged in all possible ways. The number of arrangements in which there are 2 letters between R and D is

The letters of the word 'MADHURI' are arranged in all possible ways. The number of arrangements in which there are 2 letters between R and D is

At random all the letters of the word "ARTICLE" are arranged in all possible ways. The probability that the arrangement begins with vowel and ends with a consonant is

The letters of the word MADHURI are arranged in all possible ways.The number of arrangments in which there are 2 letters between R and D is

The letters of the word 'RANDOM are arranged in all possible ways.The number of arrangements in which there are 2 letters between R and D is

The letters of the words CALCUTTA and AMERICA are arranged in all possible ways. The ratio of the number of there arrangements is