Permutations an...

The number of ways in which 6 men and 5 women can dine at a round table if no two women are to sit together is given by

The number of ways four boys can be seated around a round-table in four chairs of different colours is

The number of circular permutations of n different objects is

If the best and the worst paper never appear together, then six examination papers can be arranged in how many ways

The number of seven digit integers, with sum of the digits equal to 10 and formed by using the digits 1,2, and 3 only , is

The number of ways in which 6 rings can be worn on the four fingers of one hand is

How many numbers greater than 24000 can be formed by using digits 1,2,3,4,5 when no digit is repeated

4 buses run between Bhopal and Gwalior. If a man goes from Gwalior to Bhopal by a bus and comes back to Gwalior by another bus, then the total possible ways are

If ⁿP₄ : ⁿP₅ = 1 : 2, then n =

In how many ways can mn letters be posted in n letter boxes