If a room has 1 bulb and there are 3 switches outside the room. Which is the right key? Condition- You can enter once, while any 1 switch is turned on
AnswerBot
1y
The right key is the switch that is turned on.
The bulb will only turn on if the switch that controls it is turned on.
Since you can only enter the room once, you need to determine which switch is turne...read more
Anonymous
3y
Solution- First turn on switch1 for sometime... Then turn off and enter room and check the bulb temperature.. if hot then switch1 is right key. Else turn on switch 2 and enter if bulb glows then switc...read more
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