Test:- Permutations And Combinations - 3 - Mathematics MCQ

The number of positive integral solutions of abc = 42

The number of positive integral solutions of abed = 210

The number of triangles whose vertices are at the vertices of an octagon but none of whose side is the side of the octagon is :

Three dice are rolled. The number of possible outcomes in which at least one die shows 5 is :

How many words can be formed from the letters of the word ‘DAUGHTER’ so that the vowels come together?

In how many ways three girls and nine boys can be seated in two vans, each having numbered seat, 3 in the front and 4 at the back?

The greatest possible number of points of intersection of 8 straight lines and 4 circle is :

The number of ways of painting the faces of a cube with six different colour is :

The number of ways in which 8 different flowers can be stung to from a garland so that 4 particular flowers are never separated is:

The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :

The sum of all number greater than 1000 formed by using digits 1,3,5,7, no digit being repeated in any number is :

A father with eight children takes 3 at a time to the circus, as often as he can without taking the same 3 children together more than once, the number of times he can go to circus is :

The number of ways in which four letters can be selected from the word KAMANEA is :

The number of ways in which the letters of the word ‘RAMANEA’ are arranged such that, the relative position of vowels and consonant are not changed is :

If in class tournament each class plays once against, each of the other and in all 45 games are played, then the number of participants is :

If ⁵⁶P_r+6 : ⁵⁶P_r+3 = 1320:1 Then the value of r is:

A person goes in for examination in which there are four papers with a maximum of 20 marks from each paper. The number of ways in which one can get 40 marks is :