Permutation and Combination

Practice Permutation and Combination – The number of ways that 8 beads of different colours be strung as a necklace is 

Practice Permutation and Combination – Using numbers from 0 to 9 the number of 5 digit telephone numbers that can be formed is

Practice Permutation and Combination – In the below word how many words are there in which R and W are at the end positions?

RAINBOW

Practice Permutation and Combination – In how many different ways can 6 different balls be distributed to 4 different boxes, when each box can hold any number of ball?

Practice Permutation and Combination – What is the total no of ways of selecting atleast one item from each of the two sets containing 6 different items each?

Practice Permutation and Combination – If the letters of the word CHASM are rearranged to form 5 letter words such that none of the word repeat and the results arranged in ascending order as in a dictionary what is the rank of the word CHASM ?

Practice Permutation and Combination – How many ways can 10 letters be posted in 5 post boxes, if each of the post boxes can take more than 10 letters ?

Practice Permutation and Combination – In how many ways can 5 different toys be packed in 3 identical boxes such that no box is empty, if any of the boxes may hold all of the toys ?

Practice Permutation and Combination – How many necklace of 12 beads each can be made from 18 beads of different colours?

Practice Permutation and Combination – A coach must choose five starters from a team of 12 players. How many different ways can the coach choose the starters ?

Practice Permutation and Combination – A college has 10 basketball players. A 5-member team and a captain will be selected out of these 10 players. How many different selections can be made?

Practice Permutation and Combination – The Indian Cricket team consists of 16 players. It includes 2 wicket keepers and 5 bowlers. In how many ways can a cricket eleven be selected if we have to select 1 wicket keeper and atleast 4 bowlers?

Practice Permutation and Combination – If the letters of the word SACHIN are arranged in all possible ways and these words are written out as in dictionary, then the word ‘SACHIN’ appears at serial number :

Practice Permutation and Combination – How many integers, greater than 999 but not greater than 4000, can be formed with the digits 0, 1, 2, 3 and 4, if repetition of digits is allowed?

Practice Permutation and Combination – A committee of 5 persons is to be formed from 6 men and 4 women. In how many ways can this be done when at least 2 women are included ?