KöMaL 2007 K131
There is a rectangular food box on the kitchen counter. Its outer dimensions are 3 dm×5 dm×2.9 dm. The box is standing on its 3×5-dm face. An ant is crawling from one lower corner to the diagonally opposite top corner on the outer surface of the box. (It cannot get in the interior of the box.) What is the shortest distance that it needs to cover?
Official text KöMaL. Quoted with source.
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