IBPS RRB Permutation and Combination Quiz

In how many different ways can the letters of the word 'CORPORATION' be arranged so that the vowels always come together?

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?

In how many ways can the letters of the word 'LEADER' be arranged?

Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed?

In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?

How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?

Find the sum of all the 4 digit numbers that can be formed with the digits 3, 4, 5 and 6

The number of four–digit telephone numbers having at least one of their digits repeated is

In a cricket championship, there are 21 matches. If each team plays one match with every other team, the number of teams is

The number of straight lines that can be drawn out of 12 points of which 8 are collinear is