Please select a subject first
Advertisements
Advertisements
How many committee of five persons with a chairperson can be selected from 12 persons.
Concept: undefined >> undefined
A bag contains 5 black and 6 red balls. Determine the number of ways in which 2 black and 3 red balls can be selected from the lot.
Concept: undefined >> undefined
Advertisements
There are 10 lamps in a hall. Each one of them can be switched on independently. Find the number of ways in which the hall can be illuminated.
Concept: undefined >> undefined
A box contains two white, three black and four red balls. In how many ways can three balls be drawn from the box, if atleast one black ball is to be included in the draw
Concept: undefined >> undefined
If nCr – 1 = 36, nCr = 84 and nCr + 1 = 126, then find rC2.
Concept: undefined >> undefined
If 20 lines are drawn in a plane such that no two of them are parallel and no three are concurrent, in how many points will they intersect each other?
Concept: undefined >> undefined
In an examination, a student has to answer 4 questions out of 5 questions; questions 1 and 2 are however compulsory. Determine the number of ways in which the student can make the choice.
Concept: undefined >> undefined
A convex polygon has 44 diagonals. Find the number of its sides.
Concept: undefined >> undefined
A bag contains six white marbles and five red marbles. Find the number of ways in which four marbles can be drawn from the bag if they can be of any colour
Concept: undefined >> undefined
A bag contains six white marbles and five red marbles. Find the number of ways in which four marbles can be drawn from the bag if two must be white and two red
Concept: undefined >> undefined
A bag contains six white marbles and five red marbles. Find the number of ways in which four marbles can be drawn from the bag if they must all be of the same colour.
Concept: undefined >> undefined
In how many ways can a football team of 11 players be selected from 16 players? How many of them will include 2 particular players?
Concept: undefined >> undefined
In how many ways can a football team of 11 players be selected from 16 players? How many of them will exclude 2 particular players?
Concept: undefined >> undefined
A group consists of 4 girls and 7 boys. In how many ways can a team of 5 members be selected if the team has no girls
Concept: undefined >> undefined
A group consists of 4 girls and 7 boys. In how many ways can a team of 5 members be selected if the team has at least one boy and one girl
Concept: undefined >> undefined
A group consists of 4 girls and 7 boys. In how many ways can a team of 5 members be selected if the team has at least three girls.
Concept: undefined >> undefined
If nC12 = nC8, then n is equal to ______.
Concept: undefined >> undefined
Total number of words formed by 2 vowels and 3 consonants taken from 4 vowels and 5 consonants is equal to ______.
Concept: undefined >> undefined
Everybody in a room shakes hands with everybody else. The total number of handshakes is 66. The total number of persons in the room is ______.
Concept: undefined >> undefined
The number of triangles that are formed by choosing the vertices from a set of 12 points, seven of which lie on the same line is ______.
Concept: undefined >> undefined
