EASY
11th Maharashtra Board
IMPORTANT
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How many numbers can be formed using the digits without repetition so that resulting numbers are between and ?
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Important Questions on Permutations and Combinations
EASY
11th Maharashtra Board
IMPORTANT
Find the number of -digit numbers using the digits without repetition. How many of these numbers are divisible by .
EASY
11th Maharashtra Board
IMPORTANT
Find the number of -digit numbers using the digits without repetition. How many of these numbers are not divisible by .
EASY
11th Maharashtra Board
IMPORTANT
A code word is formed by two different English letters followed by two non-zero distinct digits. Find the number of such code words. Also, find the number of such code words that end with an even digit.
EASY
11th Maharashtra Board
IMPORTANT
Find the number of ways in which letters can be posted in post boxes if any number of letters can be posted in a post box.
MEDIUM
11th Maharashtra Board
IMPORTANT
Find the number of arranging distinct objects taken at a time so that a specified object always occurs.
EASY
11th Maharashtra Board
IMPORTANT
Find the number of arranging distinct objects taken at a time so that a specified object never occurs.
EASY
11th Maharashtra Board
IMPORTANT
In how many ways can different books be arranged on a shelf if there are no restrictions.
EASY
11th Maharashtra Board
IMPORTANT
In how many ways can different books be arranged on a shelf if books are always together.
