By going from Room A to Room B once figure out which switch works which light bulb. You cannot see the switches if in Room B.
2007-04-11 14:54:36 · 3 answers · asked by Mercedes C 1 in Science & Mathematics ➔ Engineering
Turn on switch # 1
Wait several minutes
Turn on switch # 2
Turn off switch # 1
Go into room B
The light that is on is controlled by switch # 2
Touch the remaining two light bulbs
The light bulb that is warm is controlled by switch # 1
The cold light bulb is controlled by switch # 3
QED (Quite Easily Done)
2007-04-11 15:10:03 · answer #1 · answered by Thomas C 6 · 1⤊ 0⤋
This answer assumes that you can see light in room B from room A without actually seeing which bulb(s) are on.
1. Turn on any two switches.
2. Go to room B. The bulb that is off is controlled by the switch that is off.
3. Unscrew one of the two bulbs that are on.
4. Go back to room A.
5. Turn off one of the ON switches. If room B goes dark, that switch controlls the bulb that wasn't removed. If the room does not go dark, that switch controls the bulb that was removed.
2007-04-11 15:18:48 · answer #2 · answered by David S 5 · 0⤊ 0⤋
In room A, turn all the switches and enter room B. destroy all the bulb with the sunshine on yet bypass away one bulb with mild. Then any switches has became that bulb. i'm no longer particularly particular what your questions is..yet that's what I have been given from what i assumed what it meant.
2016-12-09 00:41:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
confusing task. look into with yahoo or google. this might help!
2014-11-14 20:13:57 · answer #4 · answered by Anonymous · 0⤊ 0⤋