EASY
11th Maharashtra Board
IMPORTANT
Earn 100
Find the number of arrangements of the letters in the word so that consonants and vowels are placed alternately.
50% studentsanswered this correctly
Important Questions on Permutations and Combinations
EASY
11th Maharashtra Board
IMPORTANT
Find the number of -digit numbers that can be formed using the digits if digits can be repeated.
EASY
11th Maharashtra Board
IMPORTANT
Find the number of -digit numbers that can be formed using the digits if digits cannot be repeated.
EASY
11th Maharashtra Board
IMPORTANT
How many numbers can be formed using the digits without repetition so that resulting numbers are between and ?
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.
