If the light is on it is y.

3 switches 1 bulb puzzle answer.

There is a room with just one door which is closed and you cannot see inside the room the room has no windows. Turn it off and turn on switch y. Identify each switch with its bulb. Here it is. March 15 2020 last modified. Flip switch number 1 back to its original position and then immediately flip switch number 2.

With the door closed from outside the room you can turn the light switches on or off as many times as you would like. Else switch off s2 leaving s3 in off check bulb on or off if off then visit 2. Here is the details. Are you as smart as a norwegian crime writer. One of them controls the light inside the room. Suppose there is three buttons.

Then switch off s3 check bulb on or off if off then minimum visit 1. Let the bulbs be x y and z turn on switch x for 5 to 10 minutes. If the bulb. 1 light bulb and 3 switches puzzle. The one light bulb and three switches puzzle has been asked several times in interviews to evaluate candidate s analytical skills. All bulbs are in working condition.

You cannot see the light bulb is on or off as the door is closed. 3 switches 1 light puzzle 4 votes. If the light is off then go and feel the bulb with your hand. Open the door and touch the light bulb. One and only one controls a light bulb inside the room. Think about it for a minute then scroll down.

There is one bulb inside the room and out the room these is 3 switches you can go once out the room and on the any button and come in. You may manipulate the switches as you wish but once you open the door you can t change them. Flip switch number 1 and wait a few minutes. Button 1 button 2 and button 3. There are 3 standard on off switches outside a room. You can only enter the room once and cannot touch change any switches after the door is open or re closed for that matter.

Inside the room there is one bulb outside. You have a set of 3 light switches outside a closed door. You can go into the room one time only to see the light. After doing this process you have to tell which switch is the correct button for bulb. May 31 2020 puzzles. Asked in manual testing interview question by duke expert 5 9k points there are 3 switches and one bulb the bulb is in the closed room and switches are out side of the room now you have to identify the correct switch of the bulb.

You have only once chance to go inside the room. Have you had a lightbulb moment and solved alex s classic three switches puzzle. The other two switches do nothing. Ready for the answer. 3 switches 1 light puzzle. 3 switches 1 light puzzle.

The answer is 1. Outside the room there are three switches connected to the bulbs. There is a light bulb inside a closed room no windows with one door. Damaging or disassembling the door walls or switches is against the rules you can not see anything inside the room from outside in any way within these constraints can you determine with certainty which switch controls. If the light is on then switch number 2 controls it. Dont visit the room as bulb will be glowing for sure.