1 votes 1 votes Why can't this be done using pegionhole .... floor(31/3)= 11 Combinatory combinatory + – Pawan Kumar 2 asked Jan 26, 2018 Pawan Kumar 2 264 views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply Balaji Jegan commented Jan 26, 2018 reply Follow Share ans is 7???? 0 votes 0 votes Pawan Kumar 2 commented Jan 26, 2018 reply Follow Share yes ans is 7 but what is wrong with application of pegionhole principle 0 votes 0 votes Balaji Jegan commented Jan 26, 2018 reply Follow Share I don't know what's pigeon hole principle. I never learnt it. 0 votes 0 votes Shubhanshu commented Jan 26, 2018 reply Follow Share Simply do C(n, 3) for n = 6 it will be 20 and for n = 7 it will be 35 which is less than 31. 2 votes 2 votes Please log in or register to add a comment.
