Topper's Solved these Questions
Similar Questions
Explore conceptually related problems
CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions
- Find the total number of nine-digit numbers that can be formed using t...
Text Solution
|
- m men and n women are to be seated in a row so that no two ...
Text Solution
|
- Ten different letters of an alphabet are given . Word with five letter...
Text Solution
|
- If, ^n Cr=84 , and ^n C(r-1)=36,and ^n C(r+1)=126 , then find the val...
Text Solution
|
- Eight chairs are numbered 1 to 8. Two women and three men wish to oc...
Text Solution
|
- The value of expression .^47 C4+sum(j=1)^5.^(52-j)C3 is equal to a.....
Text Solution
|
- The number of n digit numbers which consists of the digit 1 and 2 on...
Text Solution
|
- If ""^n C3+ ""^n C4 > ""^(n+1)C3 , then a. n >6 b. n >7 c. n...
Text Solution
|
- The value of sum(r=0)^(n-1) (""^nCr)/(""^nCr+ ""^n C(r+1)) equals a....
Text Solution
|
- A bag contains four one-rupee coins, two twenty-five paisa coins, a...
Text Solution
|
- There are four letters and four directed envelopes. The number of w...
Text Solution
|
- Kanchan has 10 friends among whom two are married to each other. She...
Text Solution
|
- Number of ways in which three numbers in A.P. can be selected from ...
Text Solution
|
- The total number of positive integral solution of 15 < x1+x2+x3 lt= 20...
Text Solution
|
- A train time table must be compiled for various days of the week, so t...
Text Solution
|
- The streets of a city are arranged like the lines of a chess board. ...
Text Solution
|
- A batsman scores exactly a century by hitting fours and sixes in 20...
Text Solution
|
- In how many ways can 2t+1 identical balls be placed in three distinct ...
Text Solution
|
- John has x children by his first wife,. Mary has (k + 1) children by h...
Text Solution
|
- let a1,a2,...an be in A.P. wth common difference pi/6. If seca1seca2+s...
Text Solution
|