# Olympic Rings Mathematical Problem

• Jan 29th 2009, 10:20 AM
hipo123
Olympic Rings Mathematical Problem
http://img145.imageshack.us/img145/1...7decjanto8.jpg

Anyway, if you cannot read what it says here it is:

The 5 Olympic rings cut the plane into 15 pieces (not counting what is outside the circles). Arrange the numbers 1 through 15 in these pieces so that the sum of the numbers inside each ring is 39.

NOTE: THESE ARE NOT THE CLASSIC OLYMPIC RINGS. PLEASE VIEW THE PICTURE BEFORE ANSWERING
• Jan 30th 2009, 06:46 AM
metlx
Here's one of the solutions (in attachment).
• Jan 31st 2009, 09:53 PM
Jhevon
Quote:

Originally Posted by metlx
Here's one of the solutions (in attachment).

actually, the sum of the numbers in the bottom right ring is 40. this is not a solution
• Mar 18th 2009, 03:31 AM
dashed
Can someone please post a solution? (Thinking)
• Mar 18th 2009, 09:55 AM
metlx
see attachment.. this time it's correct :)

sorry for the mistake in my previous post.
• Mar 18th 2009, 02:38 PM
dashed
What's your logical approach to solving this problem? I tried using parity to guess how many even and odd numbers each ring will contain.