On Sun, 13 Apr 2008 08:03:41 -0700 (PDT),
<dzogchener@[EMAIL PROTECTED]
> wrote in
<news:de9d8f03-80df-432e-9a5f-04eb2a979a24@[EMAIL PROTECTED]
>
in alt.math.undergrad:
> I have been swatting up using a book I purchased, which has a question
> about area:
> How much will it cost to build a wall round a house that is 25 metres
> long and 75 metres wide, if the cost of 50 cm is £10? Your options are
> A) £4,000, B) 40,000 or C) £400. The answers are meant to be
> estimations,
> What is the answer? I have calculated the answer, but when I checked
> it I found I was wrong, but I cannot get the supposed answer. I am
> trying to just work out if the book is wrong or not.
The wall is to be 25 + 75 + 25 + 75 = 200 metres long. Each
half-metre costs £10, and the wall is 400 half-metres long,
so ... .
Brian
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