Posted by Eric on Tuesday, December 11, 2012 at 1:02am.
Write five 7digit numbers that are even. The sum of the digits in each number is 29.

Math  Steve, Tuesday, December 11, 2012 at 5:03am
all you have to do is come up with 1 such number, then shuffle the digits around, leaving the last (even) digit alone.
6152438
now shuffle the digits, leaving 8 where it is. There are 6! = 720 ways to do it.
It was easy to come up with, since 298=21, so I just picked 3 pairs of digits that add up to 7, and stuck 'em in front of the 8.

Math  Eric, Tuesday, December 11, 2012 at 9:48am
Thank you for your response. But, I just don't understand what you wrote. It seems completely different than what the question is asking. Because the statement says all 7 numbers are even?

Math  Eric, Tuesday, December 11, 2012 at 10:16am
Thank you Eric!! I understand after thinking about your solution. You are 100% correct!!! :=)

Math  Steve, Tuesday, December 11, 2012 at 10:44am
good job. Thanks for puzzling it out on your own.
Answer This Question
Related Questions
 math  Neelesh is fond of playing number games. Once when his friends were ...
 maths  Find the sum of all 3digit positive numbers N that satisfy the ...
 Math  You can only use the digits 09. I need an odd number that is a multiple ...
 Mathe  The number has two digits. Both of the digits are even.the digit in the ...
 math  You have 2 digits, 2 numbers, reverse digits and 54 if the difference and...
 data management  from the digits 0,1,2,3,4,5,6,7,8,9 find the number of a) 4...
 Data management  from the digits 0,1,2,3,4,5,6,7,8,9 find the number of a) 4...
 MATH Trouble  I have no idea what this problem means: For how many twodigit ...
 math  While adding ten twodigit numbers the digits of one of the numbers were ...
 math  I am thinking of a twodigit number in which the sum of the digits is 9 ...
More Related Questions