If the number of words of 4 letters formed with n different letters of an alphabet such that at least on letter is repeated in the word is 936, then n= (A) 4 (B) 5 (C) 6 (D) none of these

Assertioin: Number of words of 5 letters that can be formed with 10 different letters so that at least one letter is repeated in the word is 10^5-^10P_5 Reason:Number of words of 5 letters which can be formed with 10 different letters when repetiton is allowed, does not include the number of words of 5 letters that are different. (A) Both A and R are true and R is the correct explanation of A (B) Both A and R are true R is not the correct explanation of A (C) A is true but R is false. (D) A is false but R is true.

Number of words of 4 letters that can be formed with the letters of the word IIT JEE, is

Find the number of words formed with the letters of the word 'INDIA'.

Find the number of words formed with the letters of the word 'MISSISSIPPI'.

The total number of ways of selecting 4 letters from the word NARAYANA is: (A) 10 (B) 9 (C) 12 (D) none of these

Find the number of different words formed with the letters of the word HARYANA.

How many 4 letter code can be formed using the first 10 letters of the english alphabet if no letter can be repeated.

Find the number of permutations of 4 letters out of the letters of the word ARRANGEMENT.

Write the number of words that can be formed out of the letters of the word COMMITTEE.

The number of 5 letter words formed with the letters of the word CALCULUS is divisible by :