27 Mar 10
Originally posted by trev33turn 2 on wait 5 minutes and then turn one off, go upstairs and see which light is on, that takes care of the one switch on. Then check the temperature of the two dark bulbs and see which one is hot. that takes care of the second one you turned on then off, the third bulb is the one not turned on by default
you've got 3 light switches downstairs connecting to three lights upstairs. you're allowed to go upstairs only once without coming back down again and you can't see if the upstairs lights are on from downstairs. how do you work out with three light switches connect to each light? all upstairs lights are off when you begin.
29 Mar 10
Originally posted by duecerTL;DR?
turn 2 on wait 5 minutes and then turn one off, go upstairs and see which light is on, that takes care of the one switch on. Then check the temperature of the two dark bulbs and see which one is hot. that takes care of the second one you turned on then off, the third bulb is the one not turned on by default