Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

RE: Brainteaser

[Subject Prev][Subject Next][Thread Prev][Thread Next]
I suggest between step 1. and 2. do a quick "stairmaster" or 10 min.
vigourous cardiovascular exercise and you will burn a lot of calories. (but
DO NOT go upstairs!)

Kasey Hemmatyar, P. Eng. (structural)
Vancouver, B.C. 

_______________________message separator__________________
At 09:06 AM 4/24/98 -0700, you wrote:
>1. Flip the first switch on for 10 min +/- 30 second.  8^)
>2. Flip the first switch off.
>3. Flip the second switch on
>4. Go up stair right away
>5. If the light is on, the second switch control the light
>6. If not, touch the light bulb
>7. If it is hot, the first switch control the light
>8. If it is cool, the third switch control the light
>Frank Yang, P.E.           
>Senior Engineer                                   BERGER/ABAM Engineers Inc
>Voice: 206-431-2374                                33301 Ninth Avenue South
>Fax:   206-431-2250                             Federal Way, WA  98003-6395
>e-mail: yang(--nospam--at)                         
>-----Original Message-----
>From:	lsmith(--nospam--at) [SMTP:lsmith(--nospam--at)]
>Sent:	Friday, April 24, 1998 5:26 AM
>To:	seaoc(--nospam--at)
>Subject:	Brainteaser
>OK, this has nothing to do with engineering, but you do need to think to
>figure it out, so, I believe we all qualify.  According to a friend of
>mine, this was a question from a MENSA test:
>There is a switchplate with three (3) switches in the basement of a house.
>Up the stairs in a room on the ground floor is a light bulb.  The new owner
>of the house knows that the light bulb is controlled by one of the three
>switches and is in the basement.  With only one trip up the stairs, how can
>the new owner determine which switch controls the light bulb?
>Attachment Converted: C:\EUDORA\ATTACH\REBrain1