93 93 votes The number of $4$ digit numbers having their digits in non-decreasing order (from left to right) constructed by using the digits belonging to the set $\{1, 2, 3\}$ is ________. Combinatory gatecse-2015-set3 combinatory normal numerical-answers + – go_editor 30.0k views answer comment Share Follow Print See all 13 Comments 13 13 Comments reply Show 10 previous comments GO Classes Support commented Aug 6 reply Follow flag Watch the Detailed Video Solution by clicking the button below..!Watch Detailed Video Solution 0 0 replyShare narainkaarthik commented Aug 9 i edited by narainkaarthik Aug 9 reply Follow flag @Thadymademe what is the difference bw non decreasing and increasing .,arent they the same 0 0 replyShare DΛΞMON commented Aug 14 reply Follow flag @narainkaarthik Non-decreasing and increasing are same.but @Thadymademe talking about strictly increasing and strictly decreasing.for same question Strictly increasing order ans is 0. 0 0 replyShare Please log in or register to add a comment.
0 0 votes We can also solve this problem through the Stars and bars (IODB) Template: ASTRO_ANIKET answered Sep 10 ASTRO_ANIKET comment Share Follow 0 reply Please log in or register to add a comment.
