A person is permitted to selected at lea...

A person is permitted to selected at least one and at most `n` coins from a collection of `(2n+1)` distinct coins. If the total number o ways in which he can select coins is 255, find the value of `ndot`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

THEORY AND EXERCISE BOOK
MOTION|Exercise EXERCISE -2 (LEVEL - I)|23 Videos
THEORY AND EXERCISE BOOK
MOTION|Exercise EXERCISE - 2 (LEVEL -II)|18 Videos
TANGENT & NORMAL
MOTION|Exercise EXERCISE 4|14 Videos
THREE DIMENSIONAL GEOMETRY (3 -D)
MOTION|Exercise SOLVED EXAMPLE|33 Videos

Similar Questions

Explore conceptually related problems

A student is allowed to select at most n books from a collection of (2n+1) books .If the total number of ways in which he can select books is 63 find the value of n.

A student is allowed to select at most n books from a collection of (2n+1) books.If the total number of ways in which a student selects at least one book is 63. then n equals to -

Statement-1: A student is allowed to select at most n books from a collection of (2n+1) books. If the total number of ways in which he can select at least one book is 255, then n=3. sum_(r=1)^(n)""^(2n+1)C_(r)=2^(2n)

The total number of selections of atleast one thing at most r things from (2r+1) different things is 255. Then the value of r is

Given that n is odd, number of ways in which three numbers in AP can be selected from 1, 2, 3,……., n, is

A bag contains one rupee, 50 paise and 25 paise coins. The ratio of the number of 1 rupee coins to that of 50 paise coins is 5 : 9 and the ratio of the number of 50 paise conins to that of 25 paise coins is 2 : 1 . Find the value of the 50 paise coins in the bag if the total value of the bag is Rs. 425.

MOTION-THEORY AND EXERCISE BOOK-EXERCISE - 4 (LEVEL -II)

A person is permitted to selected at least one and at most n coins fro...
Text Solution
|
The number of arrangements of the letters of the word BANANA in whi...
Text Solution
|
Number of points with integral co-ordinates that lie inside a triangle...
Text Solution
|
Using permutation or otherwise, prove that (n^2)!/(n!)^n is an integer...
Text Solution
|
r, s, t are prime numbers and p, q are natural numbers such that LCM o...
Text Solution
|
The letters of the word COCHIN are permuted and all the permutation...
Text Solution
|
Consider all possible permutations of the letters of the word ENDEANOE...
Text Solution
|
The number of seven digit integers, with sum of the digits equal to 10...
Text Solution
|
Let S={1,,2,34} . The total number of unordered pairs of disjoint s...
Text Solution
|
The total number of ways in which 5 balls of differ- ent colours can b...
Text Solution
|
Let a(n) denote the number of all n-digit numbers formed by the digits...
Text Solution
|
Let a(n) denote the number of all n-digit numbers formed by the digits...
Text Solution
|
Consider the set of eight vector V={a hat i+b hat j+c hat k ; a ,bc in...
Text Solution
|
A pack contains n cards numbered from 1 to n. Two consecutive numbered...
Text Solution
|
Let ngeq2 be integer. Take n distinct points on a circle and join each...
Text Solution
|
Let n1<n2<n3<n4<n5 be positive integers such that n1+n2+n3+n4+n5=20...
Text Solution
|
Let n be the number of ways in which 5 boys and 5 girls can stand in a...
Text Solution
|
A debate club consists of 6 girls and 4 boys. A team of 4 members is t...
Text Solution
|
How many 3xx3 matrices M with entries from {0,1,2} are there, for whic...
Text Solution
|
Word of length 10 are formed using the letters A,B,C,D,E,F,G,H,I,J....
Text Solution
|
In a high school, a commintee has to be formed from a group of 6 boys ...
Text Solution
|