Questions d'entretien de consultant partagées par les candidats
I was asked a brain teaser at the end of the interview: you have a cube of 10*10*10 little cubes. How many cubes are left after you remove all the cubes on the edge.
8*8*8 = 512
First, remove the 8 corner cubes, since each corner cube is common for 3 edges. 8 removed Next, remove the cubes on the 12 edges. With the corners removed, each edge will have 8 cubes 12 * 8 = 96 removed Total number of cubes = 10*10*10 = 1000 Number of cubes removed = 8 + 96 = 104 Number of cubes remaining = 1000 - 104 = 896
The inhabitants of an island you live on will build a bridge following the ideas of their leader. You are sure the bridge is unsafe. How will you convince the inhabitants of the faulty design