A code word consists of three letters of the English alphabet followed by two digits of the decimal system. If neither letter nor digit is repeated in any code word, then the total number of code words, is

A code consists of two letters of the alphabet followed by 5 digits .How many such codes are possible ?

A code word of length 4 consists two distinct consonant in the English alphabet followed by two digits from 1 to 9 with repetition allowed in digits. If the number of code wards so formed ending with an even digit is 432 xx k , then k is equal to

A code word is to consist of two distinct English alphabets followed by two distinct number from 1to9. for example, C A23 is a code word. How many such code words are there? How many of them end with an even integer?

A code word is to consist of two English alphabets followed by two distinct numbers between 1 and 9. For example, CA23 is a code word. How many such code words are there? How many of them end with an even integer ?

A code word is to consist of two distinct English alphabets followed by two distinct number from 1 to 9. for example,CA23 is a code word.How many such code words are there? How many of them end with an even integer?

A code word is formed by two different English letters followed by two non-zero distinct digits. Find the number of such code words. Also, find the number of such code word that end with an even digit.

How many 4-letter code words are possible using the first 10 letters of the English alphabet, if no letter can be repeated ?