There are 12 balls numbered from 1 to 12...

There are 12 balls numbered from 1 to 12 the number of ways in which they can be used to fill 8 places in a row so that the balls are with numbers in ascending or descending order is equal to

`.^12c_8`

`.^12p_8`

`2xx^12p_8`

`2xx^12c_8`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

PARABOLA, ELLIPSE AND HYPERBOLA
PATHFINDER|Exercise QUESTION BANK|66 Videos
PERMUTATION AND COMBINATIONS
PATHFINDER|Exercise QUESTION BANK|81 Videos

Similar Questions

Explore conceptually related problems

Find the number of ways in which 5 boys and 5 girls be seated in a row so that all the girls are never together

Find the number of ways in which 5 boys and 5 girls be seated in a row so that no two girls sit together

The number of ways in which 5 boys and 3 girls can be seated in a row so that each girl is beween two boys, is-

There are (n+1) white and (n+1) black balls, each set numbered 1ton+1. The number of ways in which the balls can be arranged in a row so that the adjacent balls are of different colors is a. (2n+2)! b. (2n+2)!xx2 c. (n+1)!xx2 d. 2{(n+1)!}^2

Find the number of ways in which 12 different beads can be arranged to form a necklace.

Find the number of ways in which 5 boys and 5 girls be seated in a row so that all the girls sit together and all the boys sit together

Find the number of ways in which 6 boys and 6 girls can be seated in a row so that all the girls sit together and all the boys sit together.

Find the number of ways in which 5 girls and 5 boys can be arranged in a row if boys and girls are alternative.

Find the number of ways in which the letters of the word DRAUGHT can be arranged so that the vowels are always together .

There are 2 identical white balls, 3 identical red balls, and 4 green balls of different shades. Find the number of ways in which they can be arranged in a row so that atleast one ball is separated from the balls of the same color.

PATHFINDER-PERMUTATION AND COMBINATION-QUESTION BANK

At an election a voter may vote for any number of candidates not great...
Text Solution
|
There are 4 balls of different colours and four boxes of colours same ...
Text Solution
|
There are 12 balls numbered from 1 to 12 the number of ways in which t...
Text Solution
|
If a,b,c are odd positive integers then number of integral solutions o...
Text Solution
|
The number of ways to fill each of the four cells of the table with a ...
Text Solution
|
A student is to answer 10 out of 13 questions in an examination such t...
Text Solution
|
A class has n students we have to form a team of the students includin...
Text Solution
|
If all permutation of the letters of the word AGAIN are arranged as in...
Text Solution
|
If a,b,c,d are odd natural numbers such that a+b+c+d=20 then the numbe...
Text Solution
|
The value of.^50c4+underset(r=1)overset6sum.^(56-r)c3 is
Text Solution
|
On the occasion of deepawali festival each student of a class sends gr...
Text Solution
|
The set S:={1,2,3…..12} is to be partitioned into three sets A,B,C of ...
Text Solution
|
From 6 different novels and 3 different dictionaries 4 novels and 1 di...
Text Solution
|
A servant has to post 5 letters and there are 4 letter boxes in how ma...
Text Solution
|
In how many ways 5 delegates can be put in 6 hotels of a city if there...
Text Solution
|
How many different words can be formed with the letters of the word "M...
Text Solution
|
If .^(n-1)c3+^(n-1)c4gt^nc3 then n is greater than
Text Solution
|
The number of ways in which three distinct numbered in an increasing A...
Text Solution
|
The number of permutations of the letters of the word ENDEANOEL taken ...
Text Solution
|
There are 4 letters and 4 directed envelopes the number of ways in whi...
Text Solution
|