In one room there are 3 light bulbs wired to 3 light switches located in another room. You cannot see which of the light bulbs light up when you work the switches.
By going only once from the room with the switches to the room with the light bulbs, how can you determine which switch works which light bulb?
By going only once from the room with the switches to the room with the light bulbs, how can you determine which switch works which light bulb?