Hard question.?!


Question: You are outside a room with no windows and just one door which is closed , there is no way to see anything inside or for light to escape, whilst the door is closed.

there are 3 light switches on the outside which work the three bulbs in the room.



the object is to identify which switche operate which bulb.

you can operate the switches as long as the door is closed as much as you want, but once the door is open you cannot operate the switches.

how can you solve this problem.

there is more than 1 way to do find the right answer.


Answers: You are outside a room with no windows and just one door which is closed , there is no way to see anything inside or for light to escape, whilst the door is closed.

there are 3 light switches on the outside which work the three bulbs in the room.



the object is to identify which switche operate which bulb.

you can operate the switches as long as the door is closed as much as you want, but once the door is open you cannot operate the switches.

how can you solve this problem.

there is more than 1 way to do find the right answer.

Flip one of the switches, and leave it on for several minutes then flip it back off. Then flip a second switch and enter the room. The bulb for the first switch will be hot, the second will be on and the third will be off.

turn them all on.........Golly gee live a little

turn two switches on, then after 5 or 10 minutes, turn one of those switches off
when you go and check the bulbs, one will be on, one will be off and cold, and one will be off and warm

turn one switch off go back in the room see witch one is off and you know wich one that switch goes to. then switch the it back on and another one off. then you will know what bulbs go to what switch.



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