I am testing my students' logic. What is the answer they should choose between "snow" and "mud"? Logic test: Ashley was dragging her sled to a friend's house to play on a warm winter day. The snow was melting in some places but they tried to sled ride anyway. Ashley found that her sled moved very slowly on mud and she didn't make it to the bottom. The sled moved much faster and made it to the bottom of the hill when they could ride the sled on snow. Ashley and her friend decided that the surface with the least resistance to their sled was (A) snow (B) mud
Answer:
snow