You’re standing in a hallway with three light switches on the wall, each of which turns on a different lamp inside a closed room. You can’t see inside the room, and you can’t open the door except to enter the room. You can enter the room only once, and when you do, all the lamps must be turned off. How can you tell which switch turns on which lamp?
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2
Explanation:
Switch on switches 1 & 2, wait a moment 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.
hope it will help you
Answered by
0
Answer:
Switch on switches 1 and 2, wait a moment 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.
Explanation:
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