Archive for July, 2008
Wednesday, July 30th, 2008
The prize for MMM #11 goes to Chao Xu. Here is Chao's solution.
A number divisible by 11 if it's alternating sum of it's digits is divisible by 11.
We only have 6 numbers, so we have a+b+c-d-e-f divisible by 11, where a to f are variables for each position. The largest ...
Posted in Uncategorized | 5 Comments »
Monday, July 21st, 2008
MMM #11 is a variation on MMM #9. I promise I won't do any more variations on this problem after this one!
Consider all of the 6-digit numbers that one can construct using each of the digits between 1 and 6 inclusively exactly one time each. 123456 is such a ...
Posted in Game, Fun, Puzzle, Algebra | 3 Comments »
Saturday, July 5th, 2008
We have a winner for MMM #9. It's Seb Perez-D. Congratulations! Drop me a line to arrange for your prize. And, check out Blinkdagger on Monday for their new problem.
A couple of people were confused about the deadline for submitting a solution. The deadline is 12:01 Tuesday Mountain Time, which ...
Posted in Uncategorized | 7 Comments »
