Question

(c) How many words of length 8 can you form, where the first letter is the same as the last letter?

Answer 1

Step-by-step explanation:

1st Letter can be selected in 1 way (a) and there are 26 options each for 2nd, 3rd, 4th, 5th, 6th and 7th letter each and 8th letter can be selected in just 1 way (a).So, it is:

1*26*26*26*26*26*26*1 = 30,89,15,776

For the 1st and last letter, just like a, there are 26 possibilities (a to z) and thus the final count is given by 26*308915776 = 8,03,18,10,176.