You're in the basement (underground, no windows) of a house. There's 3 identical light switches in the basement. 1 of them turns the light upstairs on, and off. The other 2 do nothing. You only get 1 chance to go upstairs to see which switch operates the light upstairs. How can you determine which switch operates the upstairs light? What sequence do you do? Which switch/es do you flip to figure it out? And no, you don't have electrical diagrams, electrical measuring equipment, or anyone helping you. Just your noggin, finger/s, and 1 chance to check upstairs after you'd played with the switches.
2007-01-24
20:16:53
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4 answers
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asked by
Sam I Am
3
in
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