How many words of 5 letters can be made by using any of the 26 letters of English alphabets, if repe

M4maths Previous Puzzles

22 Nov 2012 words

How many words of 5 letters can be made by using any of the 26 letters of English alphabets, if repetition is not allowed

OPtion

1) 6593600
2) 165765600
3) 65780
4) 1234500
5) 435600
6) 120
7) 7893600
8) 67000
9) 4356400
10) none of these

Solution

no. of methods to choose first letter = 26
similarly for second = 25
so answer = 26*25*24*23*22 = 7893600

Correct Option: 7 Best Solution (0)