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Posting-Version: version B 2.10.1 6/24/83; site watcgl.UUCP
Path: utzoo!watmath!watcgl!dmmartindale
From: dmmartindale@watcgl.UUCP (Dave Martindale)
Newsgroups: net.puzzle
Subject: Re: time puzzle
Message-ID: <1050@watcgl.UUCP>
Date: Sun, 6-Nov-83 12:59:02 EST
Article-I.D.: watcgl.1050
Posted: Sun Nov  6 12:59:02 1983
Date-Received: Mon, 7-Nov-83 11:14:17 EST
References: <784@vax2.fluke.UUCP>
Organization: U of Waterloo, Ontario
Lines: 21


	thus the minute hand catches up to the hour hand every twelve
	elevenths of an hour, so the hands are together one eleventh of
	an hour after one o'clock.

	since there are sixty minutes in an hour, and sixty seconds in
	a minute, you can convince yourself that the second hand is
	there at the same time too. this self-convincing is left as an
	exercise to the student.

Huh?  What does the fact that there are 60 minutes in an hour and 60
seconds in a minute have to do with it?  As the minute hand moves through
60 minutes, the hour hand moves through 1/12 of a revolution.  As the
second hand moves through 60 seconds, the minute hand moves through 1/60
of a revolution.  I fail to see how one is supposed to apply to the other.

And, in fact, the answer is wrong.  The hour and minute hands line up
at 12/11 hour after 12:00, which is 1:05:27.  The second hand is nowhere
near the hour and minute hands.

	Dave Martindale