18 JEE Main 2022 Permutation Combination previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2022 previous-year questions from the Permutation Combination chapter of Mathematics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Permutation Combination chapter hub.
Let S be the set of all passwords which are six to eight characters long, where each character is either an alphabet fr…
The total number of 3 -digit numbers, whose greatest common divisor with 36 is 2 , is ______.
The number of 3 -digit odd numbers, whose sum of digits is a multiple of 7 , is _____.
The number of ways to distribute 30 identical candies among four children C 1 , C 2 , C 3 and C 4 so that C 2 receives…
In an examination, there are 5 multiple choice questions with 3 choices, out of which exactly one is correct. There are…
The total number of 5 -digit numbers, formed by using the digits 1 , 2 , 3 , 5 , 6 , 7 without repetition, which are mu…
There are ten boys B 1 ,   B 2 , … . , B 10 and five girls G 1 , G 2 , … . G 5 in a class. Then the nu…
The number of natural numbers lying between 1012 and 23421 that can be formed using the digits 2 , 3 , 4 , 5 , 6 (repet…
The total number of three-digit numbers, with one digit repeated exactly two times, is ______.
The number of ways, 16 identical cubes, of which 11 are blue and rest are red, can be placed in a row so that between a…
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