The sum of the digits at the 10th place ...

The sum of the digits at the 10th place of all numbers formed with the help of 2,4,5,7 taken all at a time is

432

108

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

COMBINATORICS AND MATHEMATICAL INDUCTION
SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS (section -A)|7 Videos
COMBINATORICS AND MATHEMATICAL INDUCTION
SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS (section - B)|4 Videos
COMBINATORICS AND MATHEMATICAL INDUCTION
SURA PUBLICATION|Exercise Exercise 4.4|15 Videos
BINOMIAL THEOREM, SEQUENCES AND SERIES
SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS|10 Videos
DIFFERENTIAL CALCULUS - LIMITS AND CONTINUITY
SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS (SECTION - D)|4 Videos

Similar Questions

Explore conceptually related problems

Find the sum of all the numbers that can be formed with the digits 2, 3, 4, 5 taken all at a time.

The sum of the digits in the unit's place of all the 4-digit numbers formed by 3,4,5 and 6, without repetition , is

The sum of all 4 digit numbers of different digits formed with the digits 1, 2, 5 and 6 is

The total number of 5 digit numbers formed using the digits 1, 2, 3, 4, 5 if the digits are not repeated is

The number of four-digit numbers that can be formed by using the digits 1,2,3,4,5,6,7,8 and 9 such that the least digit used is 4 , when repetition of digits is allowed is

If a denotes the number of permutations of (x+2) things taken all at a time, b the number of permutations of x things taken 11 at a time and c the number of permutations of x-11 things taken all at a time such that a=182b c , find the value of xdot

Find the sum of all three-digit natural numbers, which are divisible by 7.

SURA PUBLICATION-COMBINATORICS AND MATHEMATICAL INDUCTION -Exercise 4.5

The sum of the digits at the 10th place of all numbers formed with t...
Text Solution
|
In an examination there are three multiple choice questions and each...
Text Solution
|
The number of ways in which of following prize be given to a clas...
Text Solution
|
The number of 5 digit numbers all digits of which are odd is
Text Solution
|
In 3 fingers , the number of ways four rings can be worn is ……ways
Text Solution
|
If .^(n+5) P(n +1) = ((11(n-1))/2) .^(n +3) P(n) then the value of n...
Text Solution
|
The product of r consecutive positive integers is divisible by
Text Solution
|
The number of five digit telephone numbers having at least one of ...
Text Solution
|
If .^(a^(2-a)) C(2) = a^(2-a) C(4) then the value of a is
Text Solution
|
There are 10 points in a plane and 4 of them are collinear. The nu...
Text Solution
|
The number of ways in which a host lady invite 8 people for a par...
Text Solution
|
The number of parallelograms that can be formed from a set of four...
Text Solution
|
Everybody in a room shakes hands with everybody else. The total n...
Text Solution
|
Number of sides of a polygon having 44 diagonals is
Text Solution
|
If 10 lines are drawn in a plane such that no two of them are parallel...
Text Solution
|
In a plane are 10 points are there out of which 4 points are coll...
Text Solution
|
In .^(2n)C(3) :.^(n)C(3) = 11 : 1 then n is
Text Solution
|
.^((n-1)C(r) + ^((n-1)) C((r-1)) is
Text Solution
|
The number of ways of choosing 5 cards out of a deck of 52 which ...
Text Solution
|
The number of rectangles that a chessboard has
Text Solution
|