It has no windows and nothing can get in or out except through the door.
Three switches outside a windowless room.
The warmer of the two belongs to the second switch and the one that is not at all warm is of the third switch.
The room is completely sealed off from the outside.
A windowless room contains three identical light fixtures each containing an identical light bulb or light globe.
Turn on switch x for 5 to 10 minutes.
Outside the room there are three switches connected to the bulbs.
You may manipulate the switches as you wish but once you open the door you can t change them.
Each light is connected to one of three switches outside of the room.
Flip those switches and check out the solution here.
If you can only enter the room one time how can you determine which switch controls which lightbulb.
Switch on the first switch leave it for a minute and then switch it off again.
On the other side of the door is a room that has three light bulbs in it.
A windowless room has 3 lightbulbs.
Then turn the second switch off and enter the room after half a minute.
Feel the two bulbs that are not lit.
You are outside the room and the door is closed.
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Then switch on the second switch and enter the room.
You are outside the room and the door is closed.
Identify each switch with its bulb.
You need to determine which switch operates the bulb.
There are three light switches outside a room.
Switch on the first switch leave it for a minute and then switch it off again.
Open the door and touch the light bulb.
Each bulb is switched off at present.
You are outside the room with 3 switches each controlling one of the lightbulbs.
The bulb that is on is of the first switch.
Inside is a single light bulb controlled by one of the three switches.
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Let the bulbs be x y and z.
Each light is connected to one of three switches outside of the room.
Turn the first two switches on and leave them on for 2 minutes.
A windowless room contains three identical light fixtures each containing an identical light bulb or light globe.
Three switches outside a windowless room are connected to three light bulbs inside the room.
There is no one there to help you.
On the outside of the room there are three light switches that control each of the respective light bulbs on the other side of the door.
The door to the room is closed and there are no windows.
Then switch on the second switch and enter the room.
Turn on two switches call them a and b on and leave them on for a few minutes.
Turn it off and turn on switch y.
You can turn the switches on and off as many times as you wish they are all off to begin with but may only enter the room once.
How can you determine which switch is connected to which bulb if you are only allowed to enter the room once.
You are standing outside a closed door.
Each bulb is switched off at present.
