If there are 12 persons in a party and e...

If there are 12 persons in a party and each of them shake hands with all others, what is the total number of handshakes?

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

PERMUTATIONS AND COMBINATIONS
NEW JOYTHI PUBLICATION|Exercise EXERCISE|65 Videos
PERMUTATIONS AND COMBINATIONS
NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|63 Videos
MATHEMATICAL REASONING
NEW JOYTHI PUBLICATION|Exercise QUESTION FROM COMPETITIVE EXAMS|23 Videos
PRINCIPLES OF MATHEMATICAL INDUCTION
NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|4 Videos

Similar Questions

Explore conceptually related problems

(i) A kabaddi coach has 14 players ready to play. How many different teams of 7 players could the coach put on the court? (ii) There are 15 persons in a party and if , each 2 of them shakes hands wit each with each other. How many handshakes happen in the party? (iii) How many chords can be drawn through 20 points on a circle? (iv) In a parking lot one hunderd, one year old cars are parked. Out of them five are to be chosen at random for to check its pollution devices. How many different set of five cars are possible? (v) How many ways can a team of 3 boys, 2 girls and 1 transgender be selected from 5 boys, 4 girls and 2 transgender?

There are 15 persons in a party and if each 2 of then shakes hands with each other , how many handshakes happen in the party ?

An atom of an element has 19 electrons. What is the total number of p-orbital?

There are n married couples at a party. Each person shakes hand with every person other than her or his spouse. Find the total m of hand shakes.

If 10 lines are drawn in a plane such that no two of them are parallel and no three are concurrent, then the total number of points of intersection are

If 10 lines are drawn in a plane such that no two of them are parallel and no three are concurrent, then the total number of points of intersection are .... …..

If 10 lines are drawn in a plane such that no two of them are parallel and no three are concurrent , then total number of points of intersection are …………

What are the types of cofactors? Explain each of them.

NEW JOYTHI PUBLICATION-PERMUTATIONS AND COMBINATIONS-QUESTIONS FROM COMPETITIVE EXAMS

If there are 12 persons in a party and each of them shake hands with a...
Text Solution
|
The number of ways in which a 7 people can sit around a round table is
Text Solution
|
There are (n + 1) white and (n + 1) black balls, each set numbered 1 t...
Text Solution
|
If ""^(n)P(r)=720" "^(n)C(r), then r is equal to
Text Solution
|
Everybody in a room shakes hands with everybody else. The total n...
Text Solution
|
The number of four-digit even numbers that can be formed using 0, 1, 2...
Text Solution
|
The number of circular permutations of n different objects is
Text Solution
|
The number of ways in which 5 boys and 3 girls be seated in a row so t...
Text Solution
|
If n and r are two positive integers such that nger,"then "^(n)C(r-1)+...
Text Solution
|
If ""^(4)C(r)=""^(4)C(r+1), then the value of r is
Text Solution
|
The number of straight lines that can be formed by joining 20 points o...
Text Solution
|
The number of ways in which a committee of 6 members can be formed fro...
Text Solution
|
Evaluate the following: ""^(20)C(4)=
Text Solution
|
Let N be the number of quadratic equations with coefficients from {0, ...
Text Solution
|
If ""^(n)C(3)=220, then n = ?
Text Solution
|
A polygon has 54 diagonals. Number of sides of this polygon is
Text Solution
|
In how many ways can 8 students be arranged in a row?
Text Solution
|
The number of different permutations of the word word 'BANANA' is
Text Solution
|
Rank of the word " MOTHER " is
Text Solution
|
Six X's have to be placed in the squares of the figure below, such tha...
Text Solution
|
A student is to answer 10 out of 13 questions in an examination such t...
Text Solution
|