MathDB
Cube Rotations

Source: 2020 AMC 12B #20

February 6, 2020
AMCAMC 12AMC 12 Bprobabilityrotation

Problem Statement

Two different cubes of the same size are to be painted, with the color of each face being chosen independently and at random to be either black or white. What is the probability that after they are painted, the cubes can be rotated to be identical in appearance?
<spanclass=latexbold>(A)</span> 964<spanclass=latexbold>(B)</span> 2892048<spanclass=latexbold>(C)</span> 73512<spanclass=latexbold>(D)</span> 1471024<spanclass=latexbold>(E)</span> 5894096<span class='latex-bold'>(A)</span>\ \frac{9}{64} \qquad<span class='latex-bold'>(B)</span>\ \frac{289}{2048} \qquad<span class='latex-bold'>(C)</span>\ \frac{73}{512} \qquad<span class='latex-bold'>(D)</span>\ \frac{147}{1024} \qquad<span class='latex-bold'>(E)</span>\ \frac{589}{4096}