Sunday, May 5, 2013

3 Light Bulbs and its Switches

Puzzle # 6
There is a house and a store room is located far away from house. There are 3 Incandescent bulbs arranged in store room. Three Switches to control these bulbs are located in house. Need to identify the correct switch and bulb only visiting store room once. Conditions are as below:

  • Each switch can be made On/Off to make the respective bulb glow.
  • Only One bulb should glow at a time.
  • Emitted light rays are not visible outside the store room, when switched on the bulb.
  • All the bulbs are in Good condition.





    Puzzle Tip :

    Try to think the characteristics of a bulb, illumination, heat....


    Approach to Solve Puzzle :

    1. 3 Bulbs, 3 switches mode of bulb detection thru On/Off switches is 2 only.
    2. Think about the properties of a bulb, which make the possibility to identify third bulb.
    3. Remember a person can visit store room only once

    Solution to Puzzle :

    Nothing is impossible.
    Still you want to see the solution reach link to see the solution. But, don't give up easily. 


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