Two farmers of similar size and build, one with a new red cart full of potatoes and onions, and one with an old red cart full of onions and potatoes, leave their farm on the first day of April each year.
The journey takes eight days with good weather and as many as fifteen days with bad weather.
Which farmer reaches the destination first, and why?
Maybe a little too abstract/lateral? Will soon find out (and hopefully improve it).
Hint/Clarification (in response to manshu):
The market is the same market. The distance is the same. Same sized cart.
There was a BIG time gap between the first farmer and the second farmer reaching the market.