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From: presley@mhuxn.UUCP (Joe Presley)
Newsgroups: net.games.trivia
Subject: Re: TP twin question
Message-ID: <174@mhuxn.UUCP>
Date: Sun, 23-Dec-84 19:54:36 EST
Article-I.D.: mhuxn.174
Posted: Sun Dec 23 19:54:36 1984
Date-Received: Mon, 24-Dec-84 03:22:28 EST
References: <2256@garfield.UUCP>
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 14

> Question : How many types of twins are there.
> TP Answer : 5
> If this is the correct answer could someone please justify this 
> answer (i.e. what are the 5 types ?).

How about:
	M M identical
	M M fraternal
	F F identical
	F F fraternal
	M F fraternal (of course!)
-- 

Joe Presley (ihnp4!j.presley)