There is a room with 1 electric light bulb and there is a switch board outside the room. There are 3 switches in the switch board. The rooms door is closed. How will you identify the correct switch for turning on the light bulb?
Conditions
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1. Room door is closed and you cannot see anything in the inside of the room from the outside
2. You are standing outside of the room and standing near the switch board
3. You are allowed to open the door once.
Conditions
===========
1. Room door is closed and you cannot see anything in the inside of the room from the outside
2. You are standing outside of the room and standing near the switch board
3. You are allowed to open the door once.
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