[" The maximum number of "],[" permutations of "2n" letters in "],[" which there are only a's and b's "],[" taken all at a time is "]

The maximum number of permutation of 2n letters in which there are only a's and b's taken all at a time is given by

The maximum number of different permutations of 4 letters of the word EARTHQUAKE is

The maximum number of different permutations of 4 letters of the word EARTHQUAKE is.

The number of permutations of all letters of word 'EXERCISES' is:

The number of permutations of taken 4 letters from the word 'DEGREE' is

The number of other permutations of the letters of the word SIMPLETON taken all at a time is

The number of permutations of the letters of the word SIMPLETON taken all at a time is :

The number of other permutations of the letters of the word SIMPLETON taken all at a time is:

If a denotes the number of permutations of (x+2) things taken all at a time, b the number of permutations of x things taken 11 at a time and c the number of permutations of x-11 things taken all at a time such that a=182b c , find the value of xdot a) 10 b) 12 c) 15 d) 18

If a denotes the number of permutations of (x+2) things taken all at a time, b the number of permutations of x things taken 11 at a time and c the number of permutations of x-11 things taken all at a time such that a=182b c , find the value of xdot