3 Light Switches Riddle 1 Bulb
3 Light Switches Riddle 1 Bulb
18/01/2006 · Light bulb riddle? You are standing outside of a room. The door to the room is closed. Inside the room is a light bulb. Outside of the room there are 3 light switches. One turns on the bulb, the other two are useless. You can turn the switches on and off as many times as you like, but you can only enter the room...
Turn one light switch on, wait a few minutes, then turn it off and turn another light switch on. Go into the room and feel the light bulbs. The one that’s still warm is connected to the switch that you first turned on, the one that is on was the second switch you turned on, and the last bulb is controlled by the switch that you didn’t touch.
Riddle: Imagine you are in a room with 3 switches. In an adjacent room there are 3 bulbs (let's say in lamps which are on a regular table), each switch belongs to one bulb. All are off at the moment. It is impossible to see from one room to another. No help from anybody else is allowed.
Suppose that you are standing in a hallway next to 3 light switches, which are all off. There is another room down the hallway, where there are 3 incandescent light bulbs – each light bulb is operated by one of the switches in the hallway. Because the light bulbs are in another room, you can […]
07/07/2013 · Clue: Light Bulbs get hot when they’re on. Clue didn’t help you . Here is the solution for you. Switch on switches 1 & 2, wait a minute and switch off number 2. Enter the room. Whichever bulb is on is wired to switch 1, whichever is off and hot is wired to switch number 2, and the third is wired to switch 3.
Home » Induction Puzzles » Interview Puzzle » 3 switches 1 light puzzle. 3 switches 1 light puzzle. A + A-Print Email. You have a set of 3 light switches outside a closed door. One of them controls the light inside the room. With the door closed from outside the room, you can turn the light switches on or off as many times as you would like.
Open the door. If the light is on, then switch number 2 controls it. If the light is off, then go and feel the bulb with your hand. If the bulb is hot, then switch number 1 controls it, and if the bulb is cold, then switch number 3, the one you did not touch, controls it. ← Previous Post Next Post →
There are three light switches outside a room. Inside is a single light bulb, controlled by one of the three switches. You need to determine which switch operates the bulb. 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. There is no one there to help you. The door to the room is closed, and there are no windows ...
The answer is 1. here is the details: S1,S2,S3. Switch ON all 3 switches one by one. dont visit the room as bulb will be glowing for sure. Then, Switch OFF S3, check bulb on or off, If OFF, then Minimum visit=1;
01/03/2011 · You are in a room with 3 switches which correspond to 3 bulbs in another room and you don't know which switch corresponds to which bulb. You can only teleport to the room with the bulbs and back once. You can NOT use any external equipment (power supplies, resistors, etc.). How do you find out which bulb corresponds to which switch?