January 04, 2011

Changing of Bulb!


Okay let us take a puzzle and try to solve it logically. It is important to think logically as most of the problems that we face in life can be solved logically.

Imagine a building. In the ground floor we find three switches A, B, and C. Climb to the second floor. Out of sight from the ground floor we see a unlit light bulb hanging (not a florescent tube).

Now the puzzle. Come down to the ground floor. You can fiddle with the light switches for all long as you wish. You can switch them on or off. Once you can go the second floor. You can examine the light bulb. Can you logically tell me which switch A, B and C switches lights the bulb? Try it out. This puzzle is open till the 31st of January 2011
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4 comments:

  1. vardanJanuary 19, 2011 at 9:54 PM

    Sir,
    Im Govardhan Reddy-

    Turn on switch A for 5 min turn it off and immediately turn on switch B...then go to second floor..if the light is on it is Switch B..if the light is hot then it is Switch A.. if the bulb is cool then it is Switch C

    ReplyDelete
  2. Subhash AchantaJanuary 19, 2011 at 10:08 PM

    Sir,
    I am Subhash C. Achanta-

    To know which switch relates to the bulb we Turn on switch A for 5 min turn it off and immediately turn on switch B...
    Then go to second floor..
    If the light is on it is Switch B..
    If the light is hot then it is Switch A..
    If the bulb is cool then it is Switch C

    ReplyDelete
  3. anu amazonJanuary 19, 2011 at 11:02 PM

    Sir,
    Am Anusha Devi-

    even i go with my frenz govardhan and subhash sir....Sir I strongly feel that they r rit ..

    ReplyDelete
  4. Dr. M. Anil RameshJanuary 20, 2011 at 11:08 AM

    Keep them coming. The result will be out on first of next month. Also try out the womb for rent puzzle

    ReplyDelete