Number of ways in which 8 people can be arranged in a line if A and B must be next each other and C must be somewhere behind D, is equal to

Number of ways in which 200 people can be divided in 100 couples is -

Let A = the number of ways of selecting a committee of 5 from a group of 9 persons. B = the number of permutations of the word PRELEPCO taken all at a time. C = the number of ways in which 8 people can be arranged in a line if two particular people must stand next to each other. The value of (A B)/C equals 63 (2) 126 (3) 360 (4) 120

Let N denote the number of ways in which n boys can be arranged in a line so that 3 particular boys are seperated then N is equal to

The number of ways in which 9 persons can be divided into three equal groups is

Number of ways in which the letters of the word RAINBOW be arranged such that N and B are together is

Number of ways in which the letters of the word ‘B U L B U L’ can be arranged in a line in any order is also equal to the:

Find number of othe ways in which word 'KOLAVARI' can be arranged, if all vowels are separate from each other ?

Number of ways in which 5 boys and 4 girls can be arranged on a circular table such that no two girls sit together and two particular boys are always together: (A) 276 (B) 288 (C) 296 (D) 304

The total number of ways in which six '+' and four '-' signs can be arranged in a line such that no two signs '-' occur together, is ……….. .

The number of ways in which a mixed double game can be arranged from amongst 5 maried couples if at least one husband and wife play in the same game (A) 200 (B) 140 (C) 60 (D) none of these