In a village of 100 households, 65 have at least one DVD…

In a village of 100 households, 65 have at least one DVD player, 75 have at least one cell phone, and 35 have at least one MP3 player. If x and y are respectively the greatest and lowest possible number of households that have all three of these devices, x – y is:

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #51316