12 JEE Main 2020 Permutation Combination previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 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.
If the number of five digit numbers with distinct digits and 2 at the 10 t h place is 336 k , then k is equal to:
Two families with three members each and one family with four members are to be seated in a row. In how many ways can t…
The number of words, with or without meaning, that can be formed by taking 4 letters at a time from the letters of the…
If the letters of the word ' MOTHER ' be permuted and all the words so formed (with or without meaning) be listed as in…
The number of words (with or without meaning) that can be formed from all the letters of the word " L E T T E R …
An urn contains 5 red marbles, 4 black marbles and 3 white marbles. Then, the number of ways in which 4 marbles can be…
The number of 4 letter words (with or without meaning) that can be formed from the eleven letters of the word EXAMINATI…
A test consists of 6 multiple choice questions, each having 4 alternative answers of which only one is correct. The num…
Total number of 6 - digit numbers in which only and all the five digits 1 , 3 , 5 , 7 and 9 appears, is
There are 3 sections in a question paper and each section contains 5 questions. A candidate has to answer a total of 5…
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