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RE: FN-FORUM Sensible puzzles
date posted 20th January 2003 13:24
http://mathforum.org/dr.math/faq/faq.3utilities.html
/rob
Thijssen Intranets
Tel. 01752 774338, 0773 2827175
www.thys.co.uk
-----Original Message-----
From: [EMAIL REMOVED]
[EMAIL REMOVED] On Behalf Of Ross Hamilton
Sent: 20 January 2003 13:16
To: [EMAIL REMOVED]
Subject: RE: FN-FORUM Sensible puzzles
Draw a line to the edge of the paper, and across the back? Or does that
count as crossing another line?
Best wishes,
Ross Hamilton
--
[EMAIL REMOVED]
DJSE Limited, Willow End, Mawthorpe, Alford, Lincolnshire, LN13 9LT
T: 01507 466 797
F: 01507 463 731
M: 07970 801 661
http://www.djse-ltd.co.uk
-----Original Message-----
From: [EMAIL REMOVED]
[EMAIL REMOVED] Behalf Of Peter Small
Sent: 20 January 2003 12:44
To: [EMAIL REMOVED]
Subject: FN-FORUM Sensible puzzles
The "language" riddle is a bit old hat now. So is the "Monty Hall"
problem.
A better puzzle is the three services and three houses puzzle. It has a
solution, but it takes a neat bit of lateral thinking to work it out.
You draw three little boxes in a row. One represents an electricity
company, one a gas company and the third a water company.
Under this row of three squares, you draw another row of three squares -
each of which represents a house. The puzzle is to draw lines to
represent
supply lines so that each house is supplied with gas water and
electricity.
The rules are that these supply lines must not cross over each other, or
go
through the houses. There is a solution and it is ingenious.
peter
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