Permutations of Alike Objects

JEE Main Mathematics · Permutations and Combinations · 9 questions, latest first

• Two players A and B play a series of games of badminton. The player, who wins 5 games first, wins the series. Assuming that no…20265 April, Shift 1 · Q22
• The number of seven-digit numbers, that can be formed by using the digits 1,2,3,5 and 7 such that each digit is used at least…20262 April, Shift 1 · Q6
• Let S={1,2,3,4,5,6,7,8,9}. Let x be the number of 9-digit numbers formed using the digits of the set S such that only one digit…202628 January, Shift 1 · Q9
• The number of 4 -letter words, with or without meaning, which can be formed using the letters PQRPQRSTUVP, is ____.202623 January, Shift 1 · Q22
• The number of sequences of ten terms, whose terms are either 0 or 1 or 2, that contain exactly five 1s and exactly three 2s, is…20252 April, Shift 1 · Q9
• The number of 6-letter words, with or without meaning, that can be formed using the letters of the word MATHS such that any…202529 January, Shift 1 · Q22
• The total number of words (with or without meaning) that can be formed out of the letters of the word 'DISTRIBUTION' taken four…202431 January, Shift 1 · Q23
• Let the digits a, b, c be in A. P. Nine-digit numbers are to be formed using each of these three digits thrice such that three…202312 April, Shift 1 · Q23
• The number of seven digits odd numbers, that can be formed using all the seven digits 1,2,2,2,3,3,5 is ____.202330 January, Shift 2 · Q83