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- Path: sparky!uunet!think.com!ames!sgi!fido!babar.asd.sgi.com!mtj
- From: mtj@babar.asd.sgi.com (Michael Jones)
- Newsgroups: sci.math
- Subject: Re: Another GRE question for you folks
- Date: 12 Oct 1992 16:56:34 GMT
- Organization: Silicon Graphics, Inc.
- Lines: 40
- Distribution: world
- Message-ID: <1bcao2INN8c8@fido.asd.sgi.com>
- References: <1992Oct12.003139.2290@merrimack.edu>
- NNTP-Posting-Host: babar.asd.sgi.com
-
- In article <...>, nin15b66@merrimack.edu writes:
- |> Since everyone out here was so helpful last time I had a math question,
- |> I'll try my luck again.
- |>
- |> This one came from a sample GRE test.
- |>
- |> It is one where you have to choose A if the one on the left is greater,
- |> B if the one on the right is greater, C if they are equal or D if it can't be
- |> determined.
- |>
- |> Column A Column B
- |> 4 + 2*the square root of 2 2 + 4*the square root of 2
- |>
- |> The answer they gave is B.
- |>
- |> I disagreed though, and before I go embarrassing myself with a nasty letter
- |> to ETS, I wanted to check with the experts on the subject.
-
- The answers are:
-
- A iff they want the negative root.
- B iff they want the positive root.
- C *never*
- D iff they want mathematicians.
-
- So the question is, what are they testing? Your understanding of practical
- algebra and radicals[B] or your understanding of mathematics[D]? In all of
- my "testing history" I've found just this sort of thing the most difficult,
- mostly because it seems that:
-
- If you go with B and are marked wrong, they say "this was a subtle...",
- but if you go with D and are marked wrong, they say "well, you know
- what we meant -- everyone else did". I hate having to decide how much
- of my brain must be disabled to answer questions as expected.
-
- --
-
- Be seeing you, mtj@sgi.com 415.390.1455 M/S 7L-590
- Michael Jones Silicon Graphics, Advanced Graphics Division
- 2011 N. Shoreline Blvd., Mtn. View, CA 94039-7311
-