0 votes 0 votes How many number of ways are there to arrange the letters of the word "ARRANGEMENT" such that (i)there are exactly two pairs of consecutively identical letters? (ii)there are atleast three pairs of consecutively identical letters? Others discrete-mathematics + – satendra asked Nov 12, 2018 satendra 517 views answer comment Share Follow See all 7 Comments See all 7 7 Comments reply Show 4 previous comments satendra commented Nov 13, 2018 reply Follow Share @shaik Please see the below link for the answer of this question: https://math.stackexchange.com/questions/2920032/inclusion-exclusion-at-least-and-exactly-arrangements 0 votes 0 votes srestha commented Nov 13, 2018 reply Follow Share @Deepanshu why? 0 votes 0 votes Deepanshu commented Nov 13, 2018 reply Follow Share srestha mam i am supposing that there are 2 pairs of consecutively letters and 3 single means g , m ,t so 5 0 votes 0 votes Please log in or register to add a comment.
