math30

posted by .

The number of three digit or four digit even numbers that can be formed from the numbers 2, 3, 5, 7 is

A.72
B.120
C.144
D.5040

  • math30 -

    Question:

    Can digits be repeated,
    e.g. is 332 allowed as a 3 digit number?

    both groups must end with a "2"

    I will assume digits may repeat
    number of 3 digit even numbers = 4x4x1 = 16
    number of 4 digit even numbers = 4x4x4x1 = 64
    total = 80

    mmhhh?

    suppose we can't repeat
    3digit evens = 3x2x1
    = 6
    4digit evens = 3x2x1x1 = 6
    that would be only 12 total

    something is not right with your choices.
    Am I reading the question correctly?

  • math30 -

    Reiny I just realized "even meter" means not repeated.

    That help????

  • math30 -

    Reiny I just realized "even numbers" means not repeated.

    That help????

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math - Problem Solving

    Make a four digit below Explain why the number is even - 5,6,7,3, _, _, _, _ How would you get this?
  2. Math

    How many different three-digit numbers can be written using the digits 4, 5, 6, and 7?
  3. college math

    How many different four-digit numbers can be formed from the digits 0 through 9 if the first digit must be even and cannot be zero?
  4. Math

    How many odd four-digit numbers, all of the digit different can be formed from the digits 0 to 7, if there must be a 4 in the number?
  5. 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 …
  6. math

    given the digits 0,1,2,3,4,5,6, and 7 find the number of possibilities in each category four digit numbers, odd three digit numbers and three digit numbers without repeating digits.
  7. math

    A four-digit number between 12 and 13 has an odd number in the hundredths place and an even number in the tenths digit. The sum of the tenths and hundredths digit is 9. What are the possible four-digit numbers?
  8. math

    the hundred thousands digit of a six-digit even numbers is 3 more than the thousand digit,which is twice the ones digit.give at least four numbers that satisfy the given condition.
  9. balayan national highschool

    The hundred thousands digits of a six-digit even number is 3 more than the thousand digit, which is twice the ones digit. Give at least four numbers that satisfy the given condition.
  10. math

    the hundred thousand digit of a six digit even number is 3 more than the thousand digit which is twice the ones digit .give atleast four numbers that satisfy the given condition

More Similar Questions