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Aug 24th, 2023
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Joined: Sep 2012
Posts: 191
L - Learner Plates On
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L - Learner Plates On
Joined: Sep 2012
Posts: 191 |
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Joined: Mar 2012
Posts: 190
L - Learner Plates On
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L - Learner Plates On
Joined: Mar 2012
Posts: 190 |
There are three switches downstairs. Each corresponds to one of the three light bulbs in the attic. You can turn the switches on and off and leave them in any position.
How would you identify which switch corresponds to which light bulb, if you are only allowed one trip upstairs?
No Morgan yet...
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Joined: Jan 2012
Posts: 4,328
Gone to Porsche Part of the Furniture
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OP
Gone to Porsche Part of the Furniture
Joined: Jan 2012
Posts: 4,328 |
can you see light through the attic hatch from down stairs?
Last edited by Dean-Royal; 29/10/12 09:25 PM.
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Joined: Apr 2011
Posts: 8,646
Needs to Get Out More!
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Needs to Get Out More!
Joined: Apr 2011
Posts: 8,646 |
There are three switches downstairs. Each corresponds to one of the three light bulbs in the attic. You can turn the switches on and off and leave them in any position.
How would you identify which switch corresponds to which light bulb, if you are only allowed one trip upstairs? Turn on 2 of the switches & leave it for a few minutes. Then turn off one of those two. When you go up the the attic, the one that's lit will be the one of the 2 that you didn't switch off, the one that's off but is warm will be the other one you had switched on but had then switched off. The one that is unlit and cold will be the one you never switched on.
Giles. Mogless in Paris.
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Joined: Mar 2012
Posts: 190
L - Learner Plates On
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L - Learner Plates On
Joined: Mar 2012
Posts: 190 |
Pandy, correct, well done. Was that your IQ or Google skills at work? 
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Joined: Mar 2012
Posts: 190
L - Learner Plates On
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L - Learner Plates On
Joined: Mar 2012
Posts: 190 |
How many flowers do I have if all of them are roses except two, all of them are tulips except two, and all of them are daisies except two?
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Joined: Jan 2009
Posts: 525
Talk Morgan Regular
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Talk Morgan Regular
Joined: Jan 2009
Posts: 525 |
Pete
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Joined: Apr 2012
Posts: 5,013 Likes: 32
Charter Member
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Charter Member
Joined: Apr 2012
Posts: 5,013 Likes: 32 |
+8 4.8
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Joined: Mar 2012
Posts: 190
L - Learner Plates On
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L - Learner Plates On
Joined: Mar 2012
Posts: 190 |
3 is Correct
There is an alternative answer...
Last edited by Morph; 30/10/12 07:18 AM.
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Joined: Jan 2012
Posts: 14,976 Likes: 1
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jan 2012
Posts: 14,976 Likes: 1 |
My favourite brain teaser for a pub...
Three men go into a motel. The desk clerk said the room was $30, so each man paid $10 and went to the room. A while later, the desk clerk realized he'd made a mistake and the room was only $25, so he sent the bellboy to the three guys' room with a $5 refund.
On the way, the bellboy couldn't figure out how to split $5 evenly between three men, so he gave each man $1 and kept the other $2 for himself.
This meant that the 3 men each paid $9 for the room, which is a total of $27. Add to that the $2 the bellboy kept and the total is $29. Where is the other dollar?
Richard
1976 4/4 4 Seater
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Ref! Can I call for the TMO? 
