Posted by **vinit singh** on Monday, October 3, 2011 at 9:49am.

How many 5 digit number greater than 24000 can be formed if repetition of digit is allow.

- algebra -
**Damon**, Monday, October 3, 2011 at 10:03am
three digits can be 0 to 9 or ten things taken 3 at a time

one digit can be 4 to 0 or seven things

one at a time

the fifth, on the left, can be 2 - 9 or 8 things

permutations of 10 things taken 3 at a time = 10!/(10!-3!) = 10*9*8

then 7!/6! = 7

then 8!/7! = 8

so

10*9*8*7*8 - 1 because 24000 itself is excluded.

## Answer this Question

## Related Questions

- algebra - Consider making a four-digit I.D. number using the digits 3,5,8, and ...
- Math - Algebra - What is the linear equation that will represent the second ...
- math - i am a 5 digit palindromic number. My third digit is 5 more than my fifth...
- math - It is 7 digit even number.There is no repetition of digits. The digit 5 ...
- algebra - For every positive 2-digit number, x, with tens digit t and units ...
- algebra 2 - a two-digit counting number has a value that is 13 greater than 3 ...
- math - The number uses every number 0-9 the numbers are used only once the ...
- math - i have a six digit question my 100 thousands is one less than my ones ...
- algebra - It is a five digit whole number 1. It is a palindrome 2. It's ...
- data management - from the digits 0,1,2,3,4,5,6,7,8,9 find the number of a) 4-...

More Related Questions