2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/142316We study a simple random walk on an n-dimensional hypercube. For any starting position we find the probability of hitting vertex a before hitting vertex b, whenever a and b share the same edge. This generalizes the model in Doyle, P., and Snell, J., "Random Walks and Electric Networks", Mathematical Association of America, 1984 (see Exercise 1.3.7 there).ProbabilityCombinatorics60G50, 60J45text