Weekly Problem 1 - 2009
Every second meal I will have soup for my starter.
Every $5$th meal I will have meat for my main course.
Every $3$rd meal I will have crumble for my afters.
$2, 5$, and $3$ have no common factors, so I will have eaten
$2\times5\times3=30$ school dinners before I sit down to the same
combination.