We have partnered with TradePub to bring you free industry magazines and resources - no coupons or credit cards required!

Visit: englishforums.tradepub.com


Share this topic:
This question is Not Answered
Latest post Thu, Feb 24 2005 10:08 PM by Guest. 5 replies.
Suggest an answer | | |
Guest  +  76362 Thu, 24 Feb 05 10:08 PM
Try to solve this one.
There are 2 rooms. In one room there are three lamps. In the other one there are three
switches (to the lamps mentioned before). You're to find out which switch operates which
lamp. It doesn't matter if initially the lamps are turned off or on. And don't try include any mirror in the answer.
good luck and have a lot of fun
as with most of the riddles, once you know the answer, it seems perfectly simple.
DanielJamesSimon  +  76377 Thu, 24 Feb 05 11:31 PM
You switch one switch, go into the second room to see which lamp turn on (or off), go back, switch it off and switch one of the other two switches, go back into the second room to see which one this turned on, and then you're done.

It seems way to obvious to be the answer. Is there a trick to this question (like a limit to how many goes you get or something) or did I read it wrongly? :S
Joined on Thu, Feb 24 2005
Victoria, Australia
New Member 15
Mikial  +  76424 Fri, 25 Feb 05 03:35 AM
This question does depend on the number of times you can enter each room. I am assuming however that you can enter each only once. If this is so then you enter the room with the switches, turn on two and wait for a little bit. Then, you turn one of them off. You go to the room with the lamps and obviously the switch you kept on goes with the one thats on. As for the two that are off you feel each one of them and the one that is hot goes with the switch you turned on then off and the one you didnt turn on is the cold one.
Joined on Wed, Jan 12 2005
New Member 04
DanielJamesSimon  +  76451 Fri, 25 Feb 05 07:14 AM
That would have to be it. I didn't even think that way because it said nothing of the limit in the question. I just read it as it was written.

Assuming that you can enter each room only once, then you'd have to be right.
Vince  +  76489 Fri, 25 Feb 05 11:45 AM
Got anotherone alike:

There are two rooms.
In one room there are three switches, in the other one there is one light bulb.
One of the switches turns on the light in the other room.
You can only go into the room with the light bulb in it once, to check whether it's on or not.

What do you have to do to figure out which switch turns on the light?

Good luck...
Joined on Wed, Feb 23 2005
Germany
Full Member 156
Mikial  +  76618 Fri, 25 Feb 05 10:37 PM
This one has the same concept as the one above. you go into the room with the switches like normal. This time however, you turn on one switch and wait for a little bit. You turn it off and and turn on the next switch. You then go to the next room and if the light is on it was the one you turned on second. If it is off you feel it, if it is hot its the one you turned on then off, if cold its the switch you didnt touch.
© MediaCet Ltd. 2009, v5.0.3614.32638. All content posted by our users is a contribution to the public domain, this does not include imported usenet posts.*
For web related enquires please contact us on webmaster@mediacet.com, status updates are available at status.mediacet.com.
*Usenet post removal: Use 'X-No-Archive'. You may not have understood that your posts would end up in the public domain. Please send proof of the poster's email, we will remove immediately.