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Brain Teaser: Given a room with 3 light bulbs which have their respective three switches (On/Off) outside the room. You don't know which switch corresponds to which light bulb. You can do whatever you want with the switches but you can enter the room only once. How will you find which light switch corresponds to which light bulb?
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Software Intern

Interviewed at Halliburton

3.7
Oct 21, 2012

Brain Teaser: Given a room with 3 light bulbs which have their respective three switches (On/Off) outside the room. You don't know which switch corresponds to which light bulb. You can do whatever you want with the switches but you can enter the room only once. How will you find which light switch corresponds to which light bulb?

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