posted by .

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

  • algebra -

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

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    i have a six digit question my 100 thousands is one less than my ones digit,eight greater than my thousands digit,twice my tens digit and four times my hundreds digit,my ten thousand digit is zero,what number am i
  2. math

    The number uses every number 0-9 the numbers are used only once the fourth digit is 4 the first digit in the billions place is 3 the 5 is next to the last digit the sixth digit is 7 the digit after 3 is 9 the digit before 5 is 2the …
  3. algebra

    For every positive 2-digit number, x, with tens digit t and units digit u , let y be the 2 digit number formed by reversing the digits of x. Which of the following expressions is equivalent to x-y?
  4. math

    i am a 5 digit palindromic number. My third digit is 5 more than my fifth digit , my fourth digit is 2 times greater than my first digit. The sum of my digit is 14 What number am i?
  5. algebra

    Consider making a four-digit I.D. number using the digits 3,5,8, and 0 a. How many I.D. numbers can be formed using each digit once?
  6. algebra 2

    a two-digit counting number has a value that is 13 greater than 3 times the sum of the digits. If the units digit is 1 greater than the tens digit, what is the number
  7. Math - Algebra

    What is the linear equation that will represent the second statement in the following problem: "The sum of the digits of a three-digit number is 12. If the hundreds digit is replaced by the tens digit, the tens digit by the units digit, …
  8. math

    It is 7 digit even number.There is no repetition of digits. The digit 5 is in thousands place. The greatest digit is in thee millions place. the digit in the hundred thousandsplace twice the digit in the hundreds place.The digit in …
  9. math

    i am a 6-digit number greater than 700, hundred thousands digit is twice my ones digit,my thousands digit,and my hundreds remaining digits are the same-a prime number greater than 5
  10. stat (grade 12) pls help

    How many 3-digit numbers can be formed from the four integers 0, 1, 2, 3, if; a) no digit is repeated, b) Repetition is allowed, c) The number is even and repetition is not allowed, d) The number is odd and repetition is not allowed.

More Similar Questions