Do you think you
can think?
Prove it!
This is the
situation.
The General
Electric decided to hire several more electricians, and you are the one of the
applicants.
You already have
taken different tests successfully, and now you are having the last one.
The hiring
person leads you in the room, gives you this picture and says this.
“You can see
three switches in the room, switch # 1, switch # 2 and switch # 3. They are
absolutely identical, you never can find any difference between them.
There is the
next room behind this door. There is a regular bulb in this room. I tell you,
the only one of these switches turns that bulb on.
There is not any
window in this room, the walls are thick, the door is closed, and there is a
second door at the end of the hallway to the next room, that is closed also,
so, being in this room you cannot see or hear anything happening in the next
room. But you can stay at this room as long as you need playing with the
switches and thinking. And you have to figure out exactly what switch turns the
bulb on. You can go to the next room, I will be waiting there for you, when you
come to my room you cannot go back, and must tell me what switch turns the bulb
on, and you must prove it to me.
So, good luck!”
How can you
solve this problem and get hired?