jester started to prove that the triangles below are congruent. He was only told that point E is the midpoint of segments AC and BD. What goes in D

42. if 20 men can eat 200 kg of wheat in 40 days, then 10 men can eat 300 kg of wheat in how many days? a) 120 days b) 60 days c) 80 days d) none of these