CoCobes Permutation and Combination Quiz-1

How many 5 digit numbers can be formed from the given numbers 0, 4, 5, 6, 2?

What are the possible number of ways in which a team can be formed which has 4 boys and 2 girls from a group of 10 boys and 5 girls?

A security system has a lock with 5 rings. Each of these rings is marked with 5 different letters. Calculate the total number of failed attempts made to open the lock.

A fruitseller has 10 mangoes which wants to place in 5 boxes. Each box can hold more than 10 mangoes. Find out the number of ways in which the fruitseller can arrange 10 mangoes in 5 boxes.

Calculate the number of arrangement of the letters of the word “STRAIGHT” such that vowels must always be placed at odd places.

Out of 7 consonants and four vowels ,how many words of three consonants and 2 vowels can be formed?

3 books of mathematics and 5 books of physics are placed on a shelf so that the books on the same subject always remain together .The possible arrangements are .

The number of triangles that can be formed by choosing the vertices from a set of 12 points, seven of which lie on the same straight line is

In how many different ways can the letters of the word "MANGO" be arranged?

In how many ways 6 girls can be seated in 2 distinct chairs?