Thread: Riddle Me This, SRP

Originally Posted by xman

Is it the number of posts you've made up till now?

yes - droll, I know

Alright. Buckle up.

You are in a room with three light switches. One of the light switches operates a light bulb in an adjacent room. The other two do nothing. Using only the switches and ONE trip into the adjacent room to check the light bulb, how do you determine with certainty which switch operates the light?

X

Originally Posted by xman

Alright. Buckle up.

You are in a room with three light switches. One of the light switches operates a light bulb in an adjacent room. The other two do nothing. Using only the switches and ONE trip into the adjacent room to check the light bulb, how do you determine with certainty which switch operates the light?

X

hit switch 1 for several minutes, then turn it off and hit switch 2. Now enter the room.
If the light is on, it's switch 2.
If not, feel the bulb.
If the bulb is warm (from having been heated up by several minutes of use) then it's switch 1.
If neither is true, it's switch 3.

That's right Jason. You're up.

Originally Posted by xman

Alright. Buckle up.

You are in a room with three light switches. One of the light switches operates a light bulb in an adjacent room. The other two do nothing. Using only the switches and ONE trip into the adjacent room to check the light bulb, how do you determine with certainty which switch operates the light?

Actually the solution presumes that the light in the other room is off to start with, which is not stated in the original set up. Without knowing whether the light is on or off, I don't think you can solve the problem

Originally Posted by gugi

Actually the solution presumes that the light in the other room is off to start with, which is not stated in the original set up. Without knowing whether the light is on or off, I don't think you can solve the problem

Not true Gugi! X said you are only allowed to make one trip to the other room using only the light switches. So, punch a hole in the wall, grab the light switches, rip them out through the plaster as you move to the other room, and see which one is connected to the socket.

I base my answer on observations I made on the last electrician we hired to fix a faulty socket.

James.

sweet, your turn jimbo

nooo ...

"Using only the light switches and one trip into the adjacent room" means no fists, no wires, no wedging the door open with your shoes, no calling out to a friend, etc. regardless of the kind of electricians you like to hire, James.

And everybody knows how a light switch looks when it is in the off position, Gooj. Jason is up.



X

Originally Posted by xman

And everybody knows how a light switch looks when it is in the off position, Gooj. Jason is up.

oh, must be a canadian.... so trusting

Originally Posted by gugi

oh, must be a canadian.... so trusting

sorry ...