So, while passing the sacrament in my church last week, I noticed that at some point I had found myself serving two rows at one time. I counted nine rows in the middle. I took all the odd-numbered rows and my buddy on the other side took all the even-numbered rows.
The Attempt at a Solution
Find the LCM of 3 and 2, which is 6. That means that I must have served the sixth row and the fifth row at the same time.